IMHO.

Single-player games like Rift Riff

Below are 10 single-player Steam games similar to Rift Riff, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Rift Riff page.

Ranked picks

  1. 1
    Defe — Steam game cover

    Defe

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Strategy and Indie with Rift Riff.

    Tower Defense Roguelike with Action RPG elements, combining base building, real-time strategy, resource management, and intense top-down combat. Build by day. Defend by night. Explore and survive, if you can.

    2026StrategyIndieRPGSingle-playerSimilar games →
  2. 2
    Axom: Conquest — Steam game cover

    Axom: Conquest

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Strategy and Indie with Rift Riff.

    Build and defend your fortress while expanding out in this hold-out tower defense roguelite. Battle across a procedural alien homeworld, fight back corrupted terrain, discover hundreds of structures and upgrades as physics-driven swarms threaten to wipe out humanity.

    2026StrategyIndie8.99 USDSingle-playerSimilar games →
  3. 3
    Age of Empires II: Definitive Edition — Steam game cover

    Age of Empires II: Definitive Edition

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Strategy with Rift Riff.

    42 Civilizations, 229 Campaign Missions, Singleplayer, Co-Op, Multiplayer, In-Game Editor, Mods, Cross-play...It is good to be the king.

    2019Strategy34.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Endzone Girls — Steam game cover

    Endzone Girls

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Strategy and Indie with Rift Riff.

    《Endzone Girls》is a Tower Defense Game. You will collect resources and build fortifications before the zombies arrive to kill the zombies that invade your home. In the game, you will unlock different defensive buildings, create a unique style, defend your home in a world full of zombies.

    2025StrategyIndieSimulation7.99 USDSingle-playerSimilar games →
  5. 5
    rymdkapsel — Steam game cover

    rymdkapsel

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Strategy and Indie with Rift Riff.

    Build a space station. Command the tiny crew. Explore the galaxy. A meditative space strategy game.

    2014StrategyIndie7.99 USDSingle-playerSimilar games →
  6. 6
    ByteCrawler — Steam game cover

    ByteCrawler

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Strategy with Rift Riff.

    Pick a hero, build your swarm, and hold off enemy waves. Place units, watch your energy, and level up to survive in this lane-defense strategy game!

    2026StrategyCasualSingle-playerSimilar games →
  7. 7
    Thronefall — Steam game cover

    Thronefall

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Action and Strategy with Rift Riff.

    A minimalist game about building and defending your little kingdom.

    2024ActionStrategyIndie12.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Runeroots TD — Steam game cover

    Runeroots TD

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Strategy with Rift Riff.

    Synergize rune traits to give your towers powerful new abilities in this roguelite tower defense! Collect perks, relics, and items you can equip to your towers for unique builds each run!

    2024StrategyCasual14.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Monument Valley — Steam game cover

    Monument Valley

    Single-player alternative to Rift Riff — playable solo, no multiplayer required. Shares Strategy and Indie with Rift Riff.

    Embark on a journey of forgiveness through impossible environments and illusionary puzzles. Experience this meditative and calming puzzle game by manipulating monuments and creating evolving paths to explore new, surreal, and mysterious worlds.

    2022StrategyIndieAdventure7.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    wurdweb — Steam game cover

    wurdweb

    Single-player alternative to Rift Riff — playable solo, no multiplayer required.

    Word puzzles with Sunday morning vibes. Grab words from a list and cross them with words on the board. Puzzle your way towards a Finish Tile, put down enough words, or put down as many words as you can!

    2022Casual4.99 USDDeck PlayableSingle-playerSimilar games →