Hammer Jam is one of the most anticipated events of the year where there are significant reductions to upgrades within your village, helping you progress faster through your outstanding upgrades.
What happens during Hammer Jam?
Hammer Jam is a limited time event with lower upgrade costs and reduced upgrade times to help you prepare for a new Town Hall level. It can be a great opportunity to catch up with outstanding upgrades and make use of magic items such as Builder and Research Potions to help boost your upgrade speed even further.
The initial Hammer Jam events just impacted upgrade costs, however more recent events have also affected upgrade times and boosted the production rate/capacity of resource collectors. This provides you with increased passive resource income for your village, but also affects how much you can loot from other players when raiding their villages.
When is the next Hammer Jam?
Hammer Jam usually occurs just before the release of a new Town Hall level. Each new Town Hall level is usually released at the end of the year, so the next Hammer Jam will likely be:
November 2026
Tips to maximise progress during Hammer Jam
- Use Builder, Research and Pet Potions during Hammer Jam as with reduced upgrade times, they will offer 2x the value.
- Purchase the Gold Pass and unlock the Builder and Research boosts as these will stack with the reduced upgrade times during the event.
- Avoid using Books and Hammers during Hammer Jam as these will offer reduced value during the event. Instead, consider spending CWL Medals on Builder Potions instead of Hammers.
- Goblin Workers (if active during Hammer Jam) will offer increased value due to the reduced upgrade times, plus will also be affected by potions.
- Start your longest upgrades on the last day of Hammer Jam to benefit from the reduced upgrade time after the event has ended.
Previous Hammer Jam Events
Details for previous Hammer Jam events can be seen below:
| Year | Dates | Details |
|
2018
|
28th May - 11th Jun
|
In preparation for the TH12 release
|
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2019
|
26th Nov - 9th Dec
|
Winter Jam in preparation for the TH13 release
|
|
2021
|
1st Apr - 12th Apr
|
In preparation for the TH14 release
|
|
2022
|
27th Sep - 10th Oct
|
In preparation for the TH15 release
|
|
2023
|
27th Nov - 12th Dec
|
In preparation for the TH16 release
|
|
2024
|
8th Nov - 25th Nov
|
In preparation for the TH17 release and included 3x collector production and capacity
|
|
2025
|
3rd Jul - 8th Aug
|
Summer Jam, 4 bootcamps reducing upgrade times by 25% (excluding walls and temporary upgrades) for Gold, Elixir, DE and then all 3 as well as double collector production and capacity.
|
|
2025
|
1st Nov - 17th Nov
|
In preparation for the TH18 release and included 2x collector production and capacity
|
|
2026
|
17th May - 31st May
|
Builder Base Bonanza, 50% upgrade and cost reductions, 4x Builder Base Star Bonus and various task events to celebrate 9 years since the Builder Base was released
|
Clash Ninja Upgrade Tracker
Plan out your upgrades using the Clash Ninja Upgrade Tracker