Heavy Mental free demo launches on Steam
Black Star Interactive's co-op action roguelite, inspired by Metal Slug, supports solo play and online co-op in 20 languages.
Black Star Interactive has released a free demo of Heavy Mental, its co-op action roguelite, on Steam. The Turkish indie developer and publisher announced the demo on October 20, 2026.
The game uses a 3D toon art style and is inspired by the Metal Slug series. Players control a cyborg commando armed with a heavy machine gun on a mysterious war-ravaged island, and enemies, abilities and bosses change with each run.
Heavy Mental supports solo play as well as online co-op with friends, and it includes online and LAN co-op along with controller support. The demo is available in 20 languages, including Japanese.
The full game is planned for release soon on PC via Steam and Windows.
Quick answers
Is the Heavy Mental demo free?
Yes. Black Star Interactive released the demo free of charge on Steam.
Does Heavy Mental support co-op?
Yes. It supports solo play and online co-op with friends, including online and LAN co-op.
When does the full Heavy Mental game come out?
The full game is planned for release soon on PC via Steam and Windows.