IMHO.

Free games like Rune Defender

Below are 8 free-to-play Steam games similar to Rune Defender, 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 Rune Defender page.

Ranked picks

  1. 1
    Ultimate Custom Night — Steam game cover

    Ultimate Custom Night

    Free-to-play alternative to Rune Defender — no purchase or trial window.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeFree to playSimilar games →
  2. 2
    The Looker — Steam game cover

    The Looker

    Free-to-play alternative to Rune Defender — no purchase or trial window.

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableFree to playSimilar games →
  3. 3
    Landfall Archives — Steam game cover

    Landfall Archives

    Free-to-play alternative to Rune Defender — no purchase or trial window. Shares Strategy with Rune Defender.

    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!

    2023ActionStrategyIndieFreeFree to playSimilar games →
  4. 4
    Outpath: First Journey — Steam game cover

    Outpath: First Journey

    Free-to-play alternative to Rune Defender — no purchase or trial window.

    Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!

    2022IndieAdventureCasualFreeDeck PlayableFree to playSimilar games →
  5. 5
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to Rune Defender — no purchase or trial window. Shares Strategy with Rune Defender.

    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 →
  6. 6
    Liquidators — Steam game cover

    Liquidators

    Free-to-play alternative to Rune Defender — no purchase or trial window.

    Chernobyl, USSR, 1986. Three nuclear plant workers go on a daring mission to prevent a radioactive fallout that would affect half of Europe. Every moment is permanent, and all is at stake.

    2020IndieAdventureSimulationFreeFree to playSimilar games →
  7. 7
    Shape of Dreams: Prologue — Steam game cover

    Shape of Dreams: Prologue

    Free-to-play alternative to Rune Defender — no purchase or trial window.

    《Shape of Dreams: Prologue》is a unique game that blends action roguelite with MOBA-style gameplay. Edit your character's Memories to create your own champion. Face all challenges alone or play with friends in up to 4-player co-op.

    2024ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  8. 8
    The Life and Suffering of Sir Brante — Chapter 1&2 — Steam game cover

    The Life and Suffering of Sir Brante — Chapter 1&2

    Free-to-play alternative to Rune Defender — no purchase or trial window. Shares Strategy with Rune Defender.

    A narrative-driven hardcore RPG set in a gritty world where the gods are real. Set out on a challenging lifetime journey, where every choice you make has a price to pay and consequence to it. Will you become an inquisitor, a judge, or conspire against the old order? Dare to decide!

    2020StrategyIndieAdventureFreeFree to playSimilar games →