Clash of Clans Summer Jam Guide: Best Upgrades Before It Ends
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Clash of Clans Summer Jam has reached its most valuable stage.
The final Everything Quest runs from July 22 to August 1, 2026, applying Gold, Elixir and Dark Elixir progression boosts to Home Village upgrades. It overlaps with Clan Games from July 22 to July 28 and the return of the Goblin Researcher at normal Gem pricing. Supercell’s official July schedule confirms all three events.
The best general upgrade order is:
Army Camps and Clan Castle
Laboratory and one complete attacking army
Heroes and regularly used Pets
Spell, Siege and other offensive buildings
Storages that block expensive upgrades
High-impact defences
Lower-priority defences and traps
Walls with leftover resources
The central rule is simple: improve offence first, then use the final day to start the longest remaining upgrades.
Summer Jam 2026 Schedule and Discounts
Summer Jam is divided into four resource-based stages. Supercell officially confirms the dates and upgrade categories, while current live-event tracking records the discount tiers and collector multipliers shown in-game.
Current event documentation lists:
Town Hall 3–16: 40% lower cost and time
Town Hall 17–18: 25% lower cost and time
Collectors: 2.5× production and internal capacity for the active resource
Everything Quest: the collector boost applies to all three resources
Because these details can be adjusted through live configuration, confirm the final price and timer shown on the upgrade screen before committing resources.
When Does Summer Jam End?
Summer Jam ends on August 1, 2026. Supercell does not give a universal local-time deadline in its public schedule, so the countdown inside the Events tab should be treated as authoritative.
Do not assume it ends at midnight in your region.
What Is the Everything Quest?
The Everything Quest is the final Summer Jam stage. Unlike earlier weeks, it simultaneously covers upgrades funded with:
Gold
Elixir
Dark Elixir
This makes it the best phase for correcting an unbalanced base because Builders are no longer restricted to one resource category.
It also creates more competition between resources. Heroes, Laboratory research, army buildings and defences can all consume resources at the same time, so upgrading without a plan can leave Builders idle.
Which Upgrades Receive the Summer Jam Discount?
The Everything Quest covers most permanent Home Village progression, including:
Town Hall upgrades
Army Camps
Clan Castle
Laboratory
Barracks and Spell buildings
Troop, Spell and Siege Machine research
Heroes and Pets
Resource buildings and Storages
Defences and traps
Eligible Walls
Current event tracking lists Builder Base upgrades, Supercharges, crafted defensive systems and helper-level upgrades as excluded. Verify the Summer Jam marker on the individual upgrade screen whenever an unusual building or system is involved.
Are Walls Discounted?
Yes. Eligible Home Village Walls receive the active Summer Jam cost reduction, and the Everything Quest allows players to use them as a resource sink for excess Gold or Elixir.
Walls should still remain below timed upgrades in your priority list because:
They do not occupy Builders for long periods.
They do not benefit from the event’s timer reduction.
Excess resources can be spent on them at almost any point.
A Builder should not remain idle only to preserve resources for Walls.
Upgrade Walls after your next important timed upgrade has been funded.
Does a Discounted Timer Increase After the Event Ends?
No. Once an upgrade begins with its reduced displayed duration, that duration remains attached to the upgrade after Summer Jam ends.
This means a long upgrade started shortly before the deadline can continue running at its already-reduced timer into August. Current event tracking specifically identifies this as one of the most valuable final-day strategies.
Best Summer Jam Upgrade Priority
Why Offence Should Usually Come First
Offensive upgrades have a compounding effect.
Stronger attacks help you:
Win more Multiplayer battles
Reach deeper Storages
Farm more resources per hour
Perform better in Clan Wars
Complete Clan Games challenges faster
Fund later defensive upgrades
A rushed base with a functional army can still farm efficiently. A heavily defended base with weak troops and low Heroes will struggle to produce the resources needed to fix itself.
The Best Offensive Upgrade Order
For most newly upgraded Town Halls, use:
Laboratory
Army Camps
Clan Castle
Essential Spell buildings
Barracks or Siege access required by your army
Main troop
Main Spell
Core support troop
Heroes and Pets
Secondary strategies
You do not need every troop upgraded before moving forward. You need at least one complete army capable of reliable farming and War attacks.
Should You Rush Your Town Hall During Summer Jam?
Summer Jam can make a strategic Town Hall upgrade worthwhile, but the discount alone is not a sufficient reason.
Upgrade the Town Hall When:
Army Camps are at or near the current maximum.
The Laboratory supports at least one complete army.
Clan Castle capacity is not badly behind.
Your main Heroes are functional for the current Town Hall.
Storages can support the next level’s important upgrades.
The next Town Hall unlocks a meaningful offensive improvement.
Remaining upgrades provide little immediate account value.
Stay at the Current Town Hall When:
Your farming army is underlevelled.
Army Camps are several levels behind.
Important Spells are missing.
Clan Castle capacity is outdated.
Heroes are too weak to support normal attacks.
Storages cannot hold the next level’s upgrade costs.
You have no resource or Builder plan after the Town Hall finishes.
Strategic Rush vs Blind Rush
A strategic rush prioritizes progression systems that make the account stronger and faster to develop:
Offence
Heroes
Pets
Laboratory
Clan Castle
Storages
High-impact defences
A blind rush upgrades the Town Hall repeatedly while leaving the army, economy and Heroes unable to function.
Summer Jam rewards strategic rushing because it reduces the cost of fixing important progression bottlenecks. It does not make weak upgrade planning harmless.
Should TH16 Players Upgrade to TH17?
This decision is more complicated because the current event uses different discount tiers.
Current live-event documentation lists a 40% reduction through TH16 and a 25% reduction at TH17 and TH18. The discount tier is reportedly evaluated at the beginning of each Summer Jam phase, so players should verify the exact percentage displayed after any Town Hall transition.
Stay at TH16 When:
Several expensive TH16 upgrades remain.
Your Heroes or Pets are far behind.
Your main armies are unfinished.
You want to maximize the larger discount.
TH17 content would spread your resources too widely.
Move to TH17 When:
TH16 offence is essentially complete.
Important TH16 defences and prerequisites are finished.
You have full Storages and available Builders.
New TH17 content will improve your account immediately.
You can start several meaningful TH17 upgrades before August 1.
A balanced approach is to complete the most expensive TH16 priorities first, then start the Town Hall upgrade near the final part of Summer Jam.
Best Gold Upgrades
Gold should generally fund the longest and highest-impact structures.
Clan Castle
Clan Castle is one of the best overall upgrades because it can improve:
Reinforcement capacity
Spell capacity
Siege support
Defensive Clan troops
Every serious War attack
Upgrade it before low-impact defences whenever a new level is available.
Town Hall
Town Hall is a strong Summer Jam candidate because both its resource cost and long timer can benefit.
Start it when your account is ready for the next progression tier—not merely because it is expensive.
Core Defences
Prioritize defences that affect a large area or significantly change attack pathing:
Monolith
Inferno Towers
Scattershots
Eagle Artillery
Spell Towers
X-Bows
Major merged or Town Hall-specific defences
Upgrade one complete defensive layer before scattering Builders across many minor structures.
Storages
Upgrade Storages when they prevent you from starting:
Town Hall levels
Clan Castle upgrades
Army Camps
Expensive defences
High-level Heroes or Pets
A Rune is also less useful when your Storage capacity is too low to hold the resources required for the next target.
Lower-Priority Gold Upgrades
Usually leave these until later unless they are prerequisites:
Short trap levels
Low-impact Cannons
Archer Towers
Mortars
Collectors that are already adequate
Minor defensive upgrades with short timers
Best Elixir Upgrades
Army Camps
Army Camps are usually the strongest early investment after reaching a new Town Hall.
Additional housing space:
Benefits every army
Does not depend on a specific Meta
Improves farming and War attacks
Remains useful even when balance changes occur
Upgrade all available Camps rather than upgrading one and ignoring the others.
Laboratory
Upgrade the Laboratory early so higher troop and Spell levels become available.
Research should follow a complete-army approach:
Primary damage troop
Win condition or tank
Main Spell
Support troop
Siege Machine
Farming troop
Secondary War strategy
Avoid spreading research across unrelated armies before your primary strategy is usable.
Spell and Siege Buildings
Prioritize buildings that unlock components required by your main attacks.
Examples include:
Spell Factory
Dark Spell Factory
Siege Workshop
Barracks access
Blacksmith or offensive support buildings
The best building is not necessarily the one with the longest timer. It is the one blocking a complete attack strategy.
Goblin Researcher
Supercell’s July schedule confirms that the Goblin Researcher remains available through August 1, but the one-Gem promotional period ended on July 22. It now uses its normal pricing.
Use it only when:
The extra research is immediately useful.
You can afford both the Gem cost and research resources.
The chosen troop or Spell is part of a main strategy.
The Laboratory would otherwise develop too slowly relative to Builders.
Do not pay normal pricing merely to upgrade a troop you rarely use.
Best Dark Elixir Upgrades
Heroes
Heroes are normally the highest-value Dark Elixir investment.
Use this priority:
Hero used in your main army
Hero near an important ability or level breakpoint
Hero that is severely underlevelled
Secondary War Hero
Hero rarely used in normal attacks
The Unlimited Heroes event ran from July 15 to July 22, allowing Heroes to remain usable during upgrades and temporarily boosting Equipment. That benefit has now ended, although Hero upgrades remain discounted during the Everything Quest. (Supercell)
Before upgrading several Heroes together, check:
Clan War schedule
Ranked or competitive plans
Whether your farming army needs them
Available Books of Heroes
Remaining Dark Elixir income
Pets
Do not level every Pet equally.
Prioritize Pets that:
Are paired with your most-used Heroes
Solve a survival or targeting problem
Directly support your main army
Reach an important ability improvement soon
A high-level Pet used in every attack is more valuable than several average Pets rotating between experimental armies.
Dark Troops and Spells
Upgrade Dark Elixir research in this order:
Main army requirement
Core Spell
Farming or funnel troop
Alternative War strategy
Niche troop
Avoid consuming all Dark Elixir in the Laboratory if a major Hero or Pet upgrade is about to become available.
Best Upgrade Priorities by Town Hall
TH8–TH10 Priorities
Focus on:
Army Camps
Clan Castle
Laboratory
Barbarian King
Archer Queen
Farming troops
Core Spells
Do not move repeatedly through Town Hall levels while the Queen and main army remain unable to farm reliably.
TH11–TH12 Priorities
Focus on:
Grand Warden
Army Camps
Clan Castle
Laboratory
Eagle Artillery
Core War army
Siege access and support
The Warden provides value across almost every serious strategy, making his levels more important than several minor defences.
TH13–TH14 Priorities
Focus on:
Royal Champion
Army Camps
Clan Castle
Laboratory
Scattershots
Pet House and main Pets
Siege support
Build one dependable TH13 or TH14 army before investing heavily in alternative compositions.
TH15–TH16 Priorities
Focus on:
Main Heroes
Core Pets
Army and Spell capacity
Clan Castle
Laboratory
Monolith
Spell Towers
Defence-merging prerequisites
These levels punish unplanned rushing because the resource demand expands rapidly. Finish the systems that improve every attack before filling the base with unfinished defences.
TH17–TH18 Priorities
The smaller discount tier makes selection more important.
Choose:
Longest useful offensive upgrades
Major merged defences
New army capacity
Main Hero and Pet levels
Core Laboratory research
Upgrades required to unlock later progression
Do not occupy a Builder with a short trap level on the final day when a much longer useful project is available.
Best Magic Items During Summer Jam
Supercell’s support documentation states that a Builder Potion accelerates Home Village Builders by 10× for one hour, while a Research Potion accelerates Laboratory research by 24× for one hour.
Builder Potions
Builder Potions gain the most value when:
Every Builder is active.
Projects have long remaining timers.
You can fund replacements as upgrades finish.
Goblin Builder or extra construction capacity is also being used.
Do not activate one while two or three Builders are sleeping.
Research Potions
Use Research Potions on:
Main attacking troops
Essential Spells
Frequently used Siege Machines
Long research that blocks your next army
The potion’s speed does not make a low-priority research choice strategically valuable.
Books
Books are especially effective near the end of Summer Jam because they can:
Finish an active upgrade instantly.
Release the Builder or Laboratory.
Allow another discounted upgrade to start before August 1.
A Book used early saves time. A Book used strategically near the deadline may also create an additional discounted project.
Hammers
A Hammer already removes both the normal resource cost and full timer. It therefore gains less from an event that has already reduced those values.
Consider saving Hammers for:
Post-Summer Jam upgrades
A project not covered by the event
An urgent Town Hall upgrade
A Hero required immediately
An upgrade that would otherwise block progression
Gold Pass Builder Boost
Supercell confirms that Gold Pass Builder and Research Boosts reduce the resources and time required for upgrades.
Current live-event tracking indicates that Gold Pass reductions combine multiplicatively with Summer Jam rather than simply adding the two percentages. Always rely on the final price and timer displayed in-game before making a purchase decision.
Final 72-Hour Upgrade Plan
72 Hours Before the End
List all remaining offensive and defensive upgrades.
Sort them by strategic value and full timer.
Estimate when every Builder becomes free.
Reserve resources for final projects.
Complete Clan Games challenges.
Avoid beginning short upgrades that finish too close to the deadline.
24 Hours Before the End
Fill Storages.
Start final Hero and Pet upgrades.
Use a Book only when another project is immediately ready.
Start the longest useful Laboratory research.
Confirm that the Summer Jam reduction appears on each upgrade.
Check the in-game event timer rather than relying on a converted timezone.
Final Hour
Check every Builder.
Start the longest remaining useful upgrade.
Begin Laboratory research.
Use remaining Dark Elixir on a Hero, Pet or important research.
Spend overflow Gold and Elixir on Walls.
Confirm that no Builder is idle.
Do not cancel a useful long upgrade to chase a small resource difference.
Clan Games and Resource Management
Clan Games run from July 22 to July 28 and overlap with the Everything Quest. Rewards may include resources and Magic Items, although the exact reward rows should be checked in-game before selecting them. Supercell confirms that all players see the same Magic Item choices within the Clan Games reward structure.
Best Clan Games Strategy
Complete challenges that match normal farming.
Avoid repeatedly retraining unusual armies for small tasks.
Reach your personal target before the final day.
Check Storage capacity before claiming resources or Runes.
Claim Builder and Research Potions only when you can use them efficiently.
Avoid Full Collectors
The current Summer Jam stages boost collector production and capacity, but full internal storage eventually stops production.
Collect frequently and spend resources on:
Active Builder projects
Laboratory research
Hero or Pet levels
Walls
Do not hold maximum resources for several days while waiting for one Builder.
Common Summer Jam Mistakes
Upgrading Defences Before Offence
A defensive building does not help you farm the next upgrade. Complete the army systems that generate resources first.
Starting Short Upgrades on the Final Day
The final day is your opportunity to lock in the longest reduced timers.
Leaving Builders Idle
An idle Builder receives no value from Summer Jam. Start a useful affordable upgrade even when the ideal project is temporarily unavailable.
Spending All Resources on Walls
Walls are valuable resource sinks, but they should not prevent a timed offensive, Hero or defensive upgrade.
Using Hammers Without Comparing Alternatives
A Builder Potion or Book may allow more discounted Builder time across several projects.
Forgetting That Unlimited Heroes Ended
Heroes started during the Everything Quest are discounted, but they are no longer automatically available during the upgrade.
Rushing the Town Hall Without a Farming Army
Unlocking more content does not help when you cannot fund it.
Paying Normal Goblin Researcher Pricing Without a Plan
The one-Gem period ended on July 22. The Researcher remains available, but players should compare its normal Gem cost with the actual value of the additional research.
Forgetting the Event Countdown
August 1 does not necessarily mean local midnight. Use the in-game timer.
Frequently Asked Questions
When does Clash of Clans Summer Jam 2026 end?
The final Everything Quest ends on August 1, 2026. Check the in-game event timer for the exact time in your region.
What should I upgrade first during Summer Jam?
Upgrade Army Camps, Clan Castle, Laboratory and one complete army before lower-impact defences.
What is the Everything Quest?
It is the final Summer Jam phase, applying Gold, Elixir and Dark Elixir boosts to Home Village upgrades from July 22 to August 1.
What is the Summer Jam discount?
Current event tracking lists 40% cost and time reductions for TH3–TH16 and 25% for TH17–TH18. Verify the displayed values in-game before starting an upgrade.
Are Walls discounted?
Yes, eligible Home Village Walls are included in the current event documentation.
Are Supercharges discounted?
Current event tracking lists Supercharges among the excluded systems.
Does Summer Jam apply to Builder Base?
No. Supercell describes the final phase as covering Home Village upgrades, and current event tracking lists Builder Base as excluded.
Should I rush my Town Hall?
Rush strategically only after you have a functional army, adequate Camps, Laboratory progress, Clan Castle capacity and an upgrade plan for the next Town Hall.
Should TH16 upgrade to TH17?
Remain at TH16 when you still have several expensive high-value upgrades benefiting from the larger discount. Move to TH17 when TH16 offence is essentially complete and you can immediately use the new content.
Should I upgrade Heroes after Unlimited Heroes ends?
Yes, when the reduced cost and timer outweigh the temporary loss of Hero availability. War-focused players should coordinate their upgrade schedule carefully.
Should I use Builder Potions now?
Use them when all available Builders are actively working. A Builder Potion accelerates Home Village Builders by 10× for one hour.
Should I use Books or Hammers?
Books are useful for releasing a Builder and starting another discounted project. Hammers are usually better saved for post-event or urgent upgrades because they already remove both cost and time.
Does Gold Pass stack with Summer Jam?
Gold Pass provides separate Builder and Research reductions. Current event tracking reports that the reductions combine multiplicatively, but the final displayed upgrade screen should be treated as authoritative.
What should I upgrade on the final day?
Start the longest useful available upgrades on every Builder, begin a long Laboratory research and spend remaining excess resources on Walls.
Final Verdict: Best Upgrades Before Summer Jam Ends
Use the Everything Quest in this order:
Complete one reliable attacking army.
Upgrade Army Camps.
Upgrade Clan Castle.
Upgrade Laboratory.
Unlock essential Spells and Siege support.
Upgrade main Heroes and Pets.
Improve Storages when capacity blocks progression.
Start high-impact defensive upgrades.
Use Builder Potions only with all Builders active.
Use Books to create another discounted upgrade cycle.
Save most Hammers for later unless an upgrade is urgent.
Start the longest projects before the August 1 deadline.
Spend leftover Gold and Elixir on Walls.
Best priority for new Town Halls: Offensive buildings
Best priority for rushed accounts: Main army and Heroes
Best priority for War players: Clan Castle, Heroes and complete army upgrades
Best priority for near-max accounts: Longest remaining upgrades
Best final-day strategy: Fill every Builder with a long project
Biggest mistake: Upgrading the Town Hall without a functional army
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