DemoOnly the demo is playable right now.
Watch a swarm of tiny slammers hurl themselves at a planet and mine it to pieces. SLAM, CRACK, REPEAT.

In SwarmSlam you don't control anyone directly. A swarm of tiny slammers hurls itself at a planet, and you point it where to hit and give it more power. The planet cracks, ore flies everywhere, and eventually the core breaks and the swarm moves on to the next world. Ore feeds THE VOID, which is what makes your swarm bigger and faster. You put ore into a skill tree to gain new powers and become more efficient. There are lots of planets and ore sinks, and a prestige loop called COREBREAK lets you reset and come back stronger. The store page also hints at trading. The game started as a free prototype on itch.io and is now heading to Steam, with the release listed for 5 November 2026. It suits idle fans who like watching a lot happen on screen with only a few choices to make.
SwarmSlam has a free demo, and that is what this page links to. The full game isn't playable from here yet.
SwarmSlam is available on Browser, Steam, Windows and Steam Deck.
SwarmSlam is an idle game, featuring prestige, free, skill tree and short.
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