Sobosuba

Mergelume is a tactile offline physics puzzle about growing a colony of soft, bioluminescent Lumes. Drag from the cradle, choose your launch force, and send a Lume into a living arena. Gentle launches reward careful placement. Strong launches can push a crowded pile, open gaps and trigger unexpected chain reactions. Match equal Lumes to evolve them through twelve distinct forms, build combos and chase higher scores before the colony reaches the overflow zone. THREE ARENAS, THREE PHYSICS STYLES Verdant Atrium Time your launches around breathing wind and yielding vine gates inside an overgrown luminous glasshouse. Lunar Kiln Adapt to pulsing low gravity and a shifting gravity lean inside a fractured moon-forge. Tideglass Grotto Route small and large Lumes differently through changing currents, crystal channels and buoyancy veins. BUILT FOR SKILL, NOT POWER CREEP Progress unlocks locations, Codex discoveries, milestones and cosmetic glow themes. It never gives hidden score multipliers, easier physics or paid advantages. Records stay comparable to how well you actually play. TACTILE GAME FEEL Soft-body deformation changes how Lumes fit into gaps and react to collisions. Merges produce score bursts, chain feedback, particles, haptics and locally generated audio. Reduced Motion, independent music/SFX volume and haptics controls are included. OFFLINE FIRST The core game works without an account or permanent internet connection. Runs, settings, records and progression are stored locally, and active runs are designed to resume after interruptions. Features: - one-finger portrait controls - twelve Lume evolution stages - three physics-driven arenas - score and chain mastery - 24 milestones and Lume Codex - cosmetic glow themes - local save/resume - original offline music, ambience and SFX - Reduced Motion and haptic controls - no ads, no premium currency and no energy timers in V1