Free games like Cats & Castles
Below are 8 free-to-play Steam games similar to Cats & Castles, 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 Cats & Castles page.
Ranked picks
- 1
Age of Empires III: Definitive Edition
Free-to-play alternative to Cats & Castles — no purchase or trial window. Shares Strategy with Cats & Castles.
Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product.
- 2
Kingdom: Classic
Free-to-play alternative to Cats & Castles — no purchase or trial window. Shares Strategy and Indie with Cats & Castles.
Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.
- 3
Realm Grinder
Free-to-play alternative to Cats & Castles — no purchase or trial window. Shares Strategy with Cats & Castles.
Grow your realm, build alliances, and explore one of the deepest idle RPGs ever!
- 4
Little Incrementisle
Free-to-play alternative to Cats & Castles — no purchase or trial window. Shares Strategy and Indie with Cats & Castles.
Little Incrementisle is an incremental colony-building game where you land on one wild island after another. On each island, you gather resources, construct buildings, recruit villagers, and develop your colony, until you’re ready to set sail for the next one.
- 5
Home Wind
Free-to-play alternative to Cats & Castles — no purchase or trial window. Shares Strategy with Cats & Castles.
Home Wind is a minimalist, relaxing and cozy city builder about creating large settlements based on proximity tactics. All for free!
- 6
Oxygen: First Breath
Free-to-play alternative to Cats & Castles — no purchase or trial window. Shares Strategy and Indie with Cats & Castles.
This is a free version of Oxygen, featuring the first 50 game-days. Build your city around the Oxygen Center and ensure your people's survival in a post-apocalyptic future, threatened by crack explosions, deadly winds, droughts and frosts. Lead your people and keep the Oxygen Center running!
- 7
Cards and Castles 2
Free-to-play alternative to Cats & Castles — no purchase or trial window. Shares Strategy and Indie with Cats & Castles.
Collectible cards spring to life in this wacky Tactical CCG. Assemble a deck to challenge your friends and rivals, and engage in glorious CARD BATTLES! Will you choose fearsome dragons, or the deadly squirrels?
- 8
Black Book: Prologue
Free-to-play alternative to Cats & Castles — no purchase or trial window. Shares Strategy and Indie with Cats & Castles.
Take a peek into the haunting and mysterious world of Slavic mythos in Black Book: Prologue - a vital chapter in the story of Vasilisa, a young sorceress. Travel across the rural countryside as you aid commonfolk and battle evil forces, using a card-based combat system.