Gem Tower Defense

Choose a season

Each run keeps the ruleset you choose from start to finish.

Now available

Season 2

Build powerful slates, discover new combinations, and master a fresh seasonal ruleset.

Play Season 2

Opt-in alpha test

Season 3 Alpha

Try the experimental 1.0.35 economy and Gem Contracts without changing the official Season 2 rules or leaderboard.

View alpha details

Opt in on profile

Season 2 officially begins . It runs through October 31 and closes November 1, 2026 at 12:00 a.m. Vancouver time.