Free games like Submundus
Below are 8 free-to-play Steam games similar to Submundus, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Submundus page.
Ranked picks
- 1

Ultimate Custom Night
Free-to-play alternative to Submundus — no purchase or trial window. Shares Indie with Submundus.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2

Grimm's Hollow
Free-to-play alternative to Submundus — no purchase or trial window. Shares Indie and RPG with Submundus.
A spooky, freeware RPG where you search the afterlife for your brother. Reap ghosts with your scythe, explore haunted caves, and eat ghostly treats on your journey through death.
- 3

Iron Snout
Free-to-play alternative to Submundus — no purchase or trial window. Shares Indie with Submundus.
Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.
- 4

Silly Linguine Cat Simulator Deluxe Online
Free-to-play alternative to Submundus — no purchase or trial window. Shares Indie and RPG with Submundus.
Silly Linguine Cat Simulator Deluxe Online is a clicker game where progression is replaced with gambling, where the goal is simply to collect the rarest silly linguine cats.
- 5

Moonring
Free-to-play alternative to Submundus — no purchase or trial window. Shares RPG with Submundus.
A dark-fantasy, turn-based, retro-fusion of classic turn-based RPGs and roguelikes, all presented with a unique neon aesthetic.
- 6

Die in the Dungeon: Origins
Free-to-play alternative to Submundus — no purchase or trial window. Shares Strategy and Indie with Submundus.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 7

Epic Battle Fantasy 3
Free-to-play alternative to Submundus — no purchase or trial window. Shares Indie and RPG with Submundus.
Epic Battle Fantasy 3 is a silly turn-based JRPG, full of useless NPCs, rabid cats, childish humor, unreasonably large weapons, anime boobs, and other nonsense. And it's totally free!
- 8

The Riftbreaker: Prologue
Free-to-play alternative to Submundus — no purchase or trial window. Shares Strategy and Indie with Submundus.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.