Solo developer Miorama Games today released a free demo of Particle Collectotron, an active incremental game about operating a sci-fi particle reactor, on Steam. The full game releases on 30 March 2027.

In Particle Collectotron, players inject particles into a reactor chamber and harvest their energy before the containment barrier gives out. Between runs, they spend that energy in a large non-linear upgrade tree and tune the experiment itself: which particles to inject, how fast, at what angle and spread. Each particle type behaves differently – yellow particles arc chain lightning, blue particles shatter into shards, and exotic matter creates gravity that pulls the field into orbits. Surviving a “superinjection” grows the reactor and adds another injector.

The demo covers the first 30–45 minutes of the game.

Key features

• Run – upgrade – tune – run gameloop.
• 7 particle types with different abilities.
• Tune injector payload and trajectories before each run.
• Over 70 upgrades in a non-linear tree with multiple routes.
• 3–4 hours of gameplay in the full game.
• 14 languages.