About This Demo

Melt the city. Flood it. Nuke it!

Spray lava off the crater rim and it runs down the mountain into town. Cut the supports out of a tower and it pancakes into rubble you can bury, melt or pick up and throw. Flood a street and the water works its way down through the floors and sits at its own level, one storey at a time.

None of that is a set piece. Nothing on screen is scenery: every pixel of rock, sand, water, lava, steam, ice and metal is real matter that melts, floods, freezes, burns, sets, cracks and collapses on its own.

This is the free demo: the real engine, the real physics and the real hero. Five story missions, the island to yourself for as long as you like, and a few practice scenes on the side.

Five story missions

AFTER HOURS · KAIJU ATTACK! · SHADOW MOLTYN · STARFALL · THE MOON

Missions can be lost. Every one ends on a report card that leads with how much of the city is still standing, so the real score is what the town paid for your rescue.

Two sandbox worlds

• A cold open in a destructible office. MOLTYN presents his own abilities on the wall screen, which doubles as the controls tutorial. Hold to skip it, or laser the screen off the wall and the pitch dies with it. The room is yours to wreck and it is fully simulated like everything else.
  
• The island. A volcano island, ocean on both sides, and a hillside town running down to the harbour: office blocks, high-rise, walk-ups, houses, a lighthouse, a subway with a real train in it, would be a shame if someone messed it up for no good reason!
  
• Blank Canvas. An empty world to build in. Place terrain, materials, buildings, vehicles and people with the sandbox tools, then switch straight back to hero mode and wreck what you made. The same tools work on the island.
  
• Seven powers. Laser, gravity, water, lava, storm, freeze, and a nuke. On a world that genuinely reacts: lava meeting water makes obsidian and steam, a building that loses its supports pancakes, thrown matter lands and stays where it lands.
  
• Enemies, if you want them. Wasp waves from the sky and heavier things on the ground, switchable on or off. They take damage as matter, not as a flashing sprite.
  
• No timer, no fail state. Get knocked down and you get back up. Reset the island whenever you like.

What is not in the demo

• The full 18-mission story campaign
  
• The other sandbox worlds
  
• One of the eight powers

Those are in the full game. Early Access launches 12 November 2026 with the sandbox, the first ten missions, local PvP and CREATE, a full level editor with level sharing.

Accessibility

• Adjustable screen shake
  
• A photosensitivity safeguard that caps flash intensity and rate-limits strobe effects
  
• A damage assist
  
• A colour-blind-safe hazard palette
  
• Controller support throughout, menus included
  
• UI scaling with a readability floor

Tell us what broke

Press F2 in the demo to send a note straight to the developer, with an optional diagnostics file attached. It is opt-in every time and it says so on screen. Feedback goes directly to the person who can fix it.