HOSHIKUI

Heat is your HP, your fuel, and your timer.

There is no attack button.

Every run is a race against the cold

• Mass growth — Absorb stars to gain mass. The heavier you are, the bigger the prey you can swallow. But mass makes you cool faster, and drags you into the gravity of giants.
  
• Elemental decay — Your composition shifts as your heat drains: Hydrogen → Helium → Carbon → Silicon → Iron. You can read your remaining lifespan off your own body, and each element changes your stats.
  
• The heat death front — A cooling front expands from the origin and never stops. Standing still is death. Keep moving outward.
  
• 34 celestial bodies — Gas giants you can hide inside, ice grains that trade heat for mass, pulsars, white dwarfs, and black holes whose event horizon means instant death.
  
• Roguelite progression — 10 upgrades to pick from during a run, plus a permanent research lab that carries between runs.

No art files. No audio files.

In the box

• 33 Steam Achievements
  
• Full controller support
  
• 9 languages supported, including English, Japanese, Simplified Chinese, French and German
  
• Under 300 MB, runs on modest hardware