Starvoxel: Defender is a portrait merge tower defense game built around one shared objective. You protect one lane while an AI ally or a second player protects the other, and every leak damages the same star.

Build a seven-family loadout, summon defenders, merge matching families and rarities, and evolve Legendary units. The Android release includes 14 defender families, five battlefields across a 60-wave run, boss challenge waves, packs, and permanent card upgrades.

Play solo or in real-time online co-op. The game is free, with no ads and no pay-to-win.