Free games like Invaders from Dimension X
Below are 8 free-to-play Steam games similar to Invaders from Dimension X, 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 Invaders from Dimension X page.
Ranked picks
- 1

Grimm's Hollow
Free-to-play alternative to Invaders from Dimension X — no purchase or trial window. Shares Indie with Invaders from Dimension X.
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.
- 2

Landfall Archives
Free-to-play alternative to Invaders from Dimension X — no purchase or trial window. Shares Strategy and Indie with Invaders from Dimension X.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 3

Die in the Dungeon: Origins
Free-to-play alternative to Invaders from Dimension X — no purchase or trial window. Shares Strategy and Indie with Invaders from Dimension X.
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!
- 4

Epic Battle Fantasy 3
Free-to-play alternative to Invaders from Dimension X — no purchase or trial window. Shares Indie with Invaders from Dimension X.
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!
- 5

The Riftbreaker: Prologue
Free-to-play alternative to Invaders from Dimension X — no purchase or trial window. Shares Strategy and Indie with Invaders from Dimension X.
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.
- 6

SCP: Secret Laboratory
Free-to-play alternative to Invaders from Dimension X — no purchase or trial window. Shares Indie with Invaders from Dimension X.
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.
- 7

Splitgate
Free-to-play alternative to Invaders from Dimension X — no purchase or trial window. Shares Indie with Invaders from Dimension X.
Splitgate is a free-to-play, fast-paced multiplayer shooter that features player-controlled portals. This sci-fi shooter takes the FPS genre to a new dimension with its portal mechanics, delivering high-flying, multi-dimensional combat.
- 8

PlanetSide 2
Free-to-play alternative to Invaders from Dimension X — no purchase or trial window.
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.