IMHO.

Single-player games like TriviOwl

Below are 8 single-player Steam games similar to TriviOwl, 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 TriviOwl page.

Ranked picks

  1. 1
    Stack by stack — Steam game cover

    Stack by stack

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

    Stack by stack is a tower defense game where you have to stop evil cunning robots from stealing the core! Craft towers from enemy robot parts, Printing new metal parts for towers on 3D printers, Mining ore, Shooting. Almost all objects in the game can be carried in a stack on your hands

    2022ActionStrategyCasual4.99 USDSingle-playerSimilar games →
  2. 2
    Cat Vs Slime 猫咪大战史莱姆 — Steam game cover

    Cat Vs Slime 猫咪大战史莱姆

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

    Cat Vs Slime Innovative gravity stack tower defense! Cats stack upward to attack flying enemies. Slimes come from the ground and portals, attacking from both sides. 18 cats, 36 levels. Build your best defense and protect the cat home!

    2026StrategyIndieCasual2.99 USDSingle-playerSimilar games →
  3. 3
    One Hundred Ways — Steam game cover

    One Hundred Ways

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

    100 (115!) tricky levels to solve “One Hundred Ways” to achieve it! The goal - make the ball reach its goal. Sounds simple - but it's not!

    2015StrategyIndieCasual7.99 USDSingle-playerSimilar games →
  4. 4
    Necronator: Dead Wrong — Steam game cover

    Necronator: Dead Wrong

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

    Necronator: Dead Wrong is a deck-building roguelike with an RTS twist. Build a powerful deck. Collect and deploy undead units and raise a unique army. Master each commander’s playstyle and conquer the world. Change the game with rule-bending relics. Unlock new decks and do it all again.

    2020ActionStrategyIndie12.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Just Desserts — Steam game cover

    Just Desserts

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

    Select your commander and play a series of tower defense levels as you progress through a randomly generated map. Find shops to unlock upgrades for your towers and commander, and fight mini bosses for bonus rewards to prepare for Count Cakeula.

    2024StrategyIndieCasual4.99 USDSingle-playerSimilar games →
  6. 6
    Angels vs Demons — Steam game cover

    Angels vs Demons

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

    Welcome to the heavenly world, in which you have to fight with demons. They have surrounded the heavens and are trying to destroy everyone. But there are angels at your disposal, ready to expel the enemy.

    2021StrategyIndieCasual9.99 USDSingle-playerSimilar games →
  7. 7
    Guess Pictures - Animals — Steam game cover

    Guess Pictures - Animals

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

    This quiz game is a great choice when you want to learn something, when you feel boring, or when you want to kill some free time. Can you find the words for every animal picture? Train your brain and learn new words by solving guessing the pics.

    2020StrategyIndieAdventure4.99 USDSingle-playerSimilar games →
  8. 8
    Defend Your Life: TD — Steam game cover

    Defend Your Life: TD

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

    Defend Your Life! Is tower defense set in human body where players are fighting against villain hordes of viruses and bacteria. Levels and units correspond to reality of human anatomy.

    2015ActionStrategyIndie9.99 USDSingle-playerSimilar games →