Starvoxel Pressure, splash, poison and control.
- Fast pressureLaser and Scrap Raccoon
- Splash and poisonBomb Hedgehog and Venom Rex
- Legendary controlEMP, Tesla and Cryo Cannon
A portrait-first merge tower defense for iOS and Android. Build a seven-family squad, merge matching defenders, and hold one shared health bar with a friend or AI ally.
Play solo any time - an AI ally holds your second lane while you learn the grid. Free, no ads; optional purchases.
Direct battle frames captured from the current released mobile game - not concept art or a mock-up.
Every defender starts Common. Merge a matching pair and it jumps a tier. Reach Legendary and it can evolve mid-battle into one of three specialist forms - each with its own trick.
Fifteen defender families, each fighting its own way - with boss-only waves testing every build.
You defend the bottom lane, your partner defends the top - and you share a single health bar. One leak hurts you both, so every merge and every mine counts. Team up in real-time online co-op, or hold both lanes solo with an AI ally.
Clear five 60-wave campaigns and unlock harder difficulties one by one. The global leaderboard ranks commanders by their highest difficulty first, then by the maximum wave they cleared.
Crack packs for defender parts, strengthen the families you love, and push your account level. The Crystal Constellation Battle Pass adds free and optional Premium rewards while you play. Add friends by username and pull them straight into an online co-op run.
Your loadout decides which defender families your summons can draw from. A balanced squad can mix fast focused attacks, splash damage, poison and control unlocked at Legendary.
New systems, balance changes, fixes and performance work are collected in one permanent update log, newest first.
Read game updatesStraight facts for players looking for a mobile tower defense game they can play together.
Starvoxel: Defender is a portrait mobile merge tower defense for iOS and Android. You summon defenders, merge matching family and rarity pairs, and build toward stronger forms.
Two players defend separate lanes in real time while sharing one health pool. Every escaped enemy hurts the same shared star.
Yes. An AI ally controls the second lane, so every campaign can be played without waiting for another player.
The released game is free on the App Store and Google Play. It has no ads and offers optional in-app purchases.
Free to play · No ads · iOS & Android