The COC Hammer Jam event November 2025 is here, offering huge discounts and faster upgrades. Get ready to boost your village before the big Town Hall 18 update!
The famous Hammer Jam event has returned to Clash of Clans starting November 1, 2025. This event is a sign that something big is coming soon, that is, the much-awaited Town Hall 18 update, expected at the end of this year. But before that arrives, Hammer Jam gives players the perfect chance to upgrade their bases quickly and save lots of resources.
What is the COC Hammer Jam event November 2025?
Hammer Jam is an event where, for about two weeks, all upgrades on buildings, heroes, and troops cost 50% less and take 50% less time. This means you can upgrade your village much faster and spend fewer Gold, Elixir, and Dark Elixir. Temporary upgrades like Supercharges and Crafted Defenses are excluded, but everything else gets a huge discount.
This year, the event runs from November 1 through November 17. Alongside reduced costs and times, players will also enjoy double resource production and increased storage capacity. This helps you gather enough resources to keep upgrading throughout the event. With all these perks, it’s the best time to prepare your base for the new Town Hall 18 level.
Hammer Jam is now live!
— Clash Ninja (@ClashDotNinja) November 1, 2025
This follows a similar format to last year's event, so check out the details in the image below.
The reductions have also been automatically applied (hopefully...) on the Clash Ninja Upgrade Tracker, so you can plan what upgrades you want to start next.... pic.twitter.com/at2vOx1ljw
Tips for making the most out of Hammer Jam November 2025
- Focus on short upgrades first: Clear your queue quickly by finishing smaller upgrades, and then start on the large ones. This way, you can complete more improvements while the event lasts.
- Reserve builders for walls: Walls often cost the most resources and take a long time. Keep at least one builder free to upgrade walls so you can improve your defenses smartly during the event.
- Use Builder and Research Potions wisely: These potions double the speed of your upgrades and research. Use them when you have a lot of upgrades lined up to maximize the time saved.
- Upgrade resource collectors: Make sure your Gold Mines, Elixir Collectors, and Dark Elixir Drills are upgraded to their highest possible levels to fuel your upgrades with a steady flow of resources.
- Save powerful items for after the event: Books of Building or Everything can instantly finish an upgrade. It’s smart to save these for upgrades you want to complete immediately after Hammer Jam ends, especially when moving to Town Hall 18.
Other events during Hammer Jam
Hammer Jam overlaps with other exciting November events like Clan War League and a new Community Event. These give players extra ways to collect loot and rewards.
So, staying active during this time means you can gather the resources you need quickly and move your village progress forward smoothly.
All in all, if you’re playing Clash of Clans, don’t miss out on the Hammer Jam event November 2025. Starting November 1, enjoy a 50% discount on upgrade costs and timings, double resource storage and production, and a treasure trove of strategic chances to power up your village. This event runs through November 17, so plan your upgrades smartly, use your builder potions well, and get ready for Town Hall 18.