Active nowhammer_jamMay 16, 2026 – May 31, 2026

Best Builder Base Hammer Jam Bases 2026

Name: Builder Base Hammer Jam
Start: 2026-05-16T20:50:00.532145+00:00
End: 2026-05-31T20:50:00.532145+00:00

Find the best Builder Base Hammer Jam layouts for every Builder Hall level. Discover progress bases that keep your upgrades and building structure organized during Hammer Jam, plus strong anti Night Witch, anti ground, anti 1 star and dual stage defensive bases for Builder Base battles.

14Connected bases

9,511Base views

2Event sections

Builder Base Hammer Jam

Progress bases

Keep your Builder Base clean and organized during Hammer Jam with progress bases for every Builder Hall level. Perfect for tracking upgrades, walls and new defenses while progressing faster.