Starvoxel: Merge Defender

Merge. Defend. Duel - together. Starvoxel: Defender is a chunky co-op tower defense you play WITH someone. You hold one lane, your ally holds the other, and a single shared health pool decides the run. Drop turrets, merge matching families into stronger tiers, evolve Legendaries, and hold the line against escalating waves and bosses. REAL-TIME CO-OP Team up online with a friend or a matched ally - one shared base, two lanes, total interdependence. Carry your side, or lose together. RANKED PvP DUELS Queue into live head-to-head battles, send miniboss pressure across the lane, and outlast your rival. Climb the Elo ladder and the global leaderboards. FRIENDS & PROFILES Add friends by username, see who's online, and pull them straight into co-op or a friendly duel. Claim your name, pick an avatar, and level up your account. BUILD YOUR ARSENAL Collect and upgrade 7 turret families - Blaster, Laser, Tesla, Cryo, Missile, EMP and Flak. Crack open packs, level your cards, and unlock powerful Evolutions. WHAT'S INSIDE - Real-time online co-op tower defense with shared hearts - Ranked PvP duels, Elo ratings and global leaderboards - Friends list - invite allies to co-op or friendly duels - Merge from Common to Legendary, then Evolutions - 7 turret families and dozens of evolutions - Solo play with a friendly AI ally - Pack openings and account progression - Short sessions, deep upgrade decisions Free to play. Grab a partner and hold the line.