IMHO.

Free games like UFO: Extraterrestrials Platinum

Below are 8 free-to-play Steam games similar to UFO: Extraterrestrials Platinum, 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 UFO: Extraterrestrials Platinum page.

Ranked picks

  1. 1
    Die in the Dungeon: Origins — Steam game cover

    Die in the Dungeon: Origins

    Free-to-play alternative to UFO: Extraterrestrials Platinum — no purchase or trial window. Shares Strategy and Indie with UFO: Extraterrestrials Platinum.

    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!

    2023StrategyIndieRPGFreeDeck VerifiedFree to playSimilar games →
  2. 2
    Epic Battle Fantasy 3 — Steam game cover

    Epic Battle Fantasy 3

    Free-to-play alternative to UFO: Extraterrestrials Platinum — no purchase or trial window. Shares Indie and RPG with UFO: Extraterrestrials Platinum.

    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!

    2016IndieAdventureRPGFreeDeck PlayableFree to playSimilar games →
  3. 3
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to UFO: Extraterrestrials Platinum — no purchase or trial window. Shares Strategy and Indie with UFO: Extraterrestrials Platinum.

    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.

    2020ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  4. 4
    The Last Sovereign — Steam game cover

    The Last Sovereign

    Free-to-play alternative to UFO: Extraterrestrials Platinum — no purchase or trial window. Shares Strategy and Indie with UFO: Extraterrestrials Platinum.

    Explore a world torn between armies of lust and purity in which everything is more complex than it seems, deciding the fate of nations through might, politics, and finance. Every decision matters in an intricate saga that tracks thousands of variables.

    2025StrategyIndieAdventureFreeDeck VerifiedFree to playSimilar games →
  5. 5
    Limbus Company — Steam game cover

    Limbus Company

    Free-to-play alternative to UFO: Extraterrestrials Platinum — no purchase or trial window.

    As the Executive Manager of Limbus Company, lead your group of twelve Sinners, venture into the buried facilities of Lobotomy Corporation, and lay claim on the Golden Boughs.

    2023FreeDeck PlayableFree to playSimilar games →
  6. 6
    Clicker Heroes — Steam game cover

    Clicker Heroes

    Free-to-play alternative to UFO: Extraterrestrials Platinum — no purchase or trial window. Shares Strategy and Indie with UFO: Extraterrestrials Platinum.

    Click your way through hordes of monsters, earn gold, and recruit quirky heroes with powerful skills. Progress even while you're idle, and watch the numbers climb into the absurd. It’s a never-ending journey of clicks, crits, and colossal damage.

    2015StrategyIndieAdventureFreeFree to playSimilar games →
  7. 7
    Toribash — Steam game cover

    Toribash

    Free-to-play alternative to UFO: Extraterrestrials Platinum — no purchase or trial window. Shares Strategy and Indie with UFO: Extraterrestrials Platinum.

    Toribash is an innovative free-to-play online turn-based fighting game where you’re able to design your own moves. Complete control over character's body, hundreds of game mods and bloody mess with full body dismemberment - you've never been able to annihilate your enemies like that before!

    2014ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  8. 8
    Kingdom: Classic — Steam game cover

    Kingdom: Classic

    Free-to-play alternative to UFO: Extraterrestrials Platinum — no purchase or trial window. Shares Strategy and Indie with UFO: Extraterrestrials Platinum.

    Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.

    2015StrategyIndieSimulationFreeDeck VerifiedFree to playSimilar games →