Starvoxel: Defender

MERGE. DEFEND. EVOLVE — TOGETHER. Starvoxel: Defender is a co-op merge tower defense built around one shared star. Learn the basics in a guided five-wave training match, play solo with an AI ally, or team up online with another player. You protect one lane, your ally protects the other, and every leak hurts the same shared hearts. BUILD YOUR TEAM Collect 15 defender families, choose a seven-family loadout, summon random defenders, and merge matching family and rarity into stronger tiers. Evolve Legendary defenders into specialized final forms. DEFEND TOGETHER Fight through 60 waves, coordinate upgrades, survive boss waves, and master five increasingly difficult battlefields. Add friends by username, invite them directly, and climb the global progression ranking. • Guided five-wave first battle • Solo play with an AI ally • Real-time online co-op • 15 defender families and seven-card loadouts • Common-to-Legendary merging and Evolutions • Five battlefields, bosses, packs, and permanent card upgrades Free to play. Grab a partner and hold the line. CRYSTAL CONSTELLATION A new two-month, 100-level Battle Pass has arrived. Earn free rewards every five levels or unlock Premium rewards at every level, exclusive profile cosmetics, optional 1.5x battles, and Glint Guardian from Starvoxel Jump at level 100. Glint includes three unique Evolutions with distinct crystal powers.