Free games like Kingdom vs Zombies
Below are 8 free-to-play Steam games similar to Kingdom vs Zombies, 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 Kingdom vs Zombies page.
Ranked picks
- 1

The Riftbreaker: Prologue
Free-to-play alternative to Kingdom vs Zombies — no purchase or trial window. Shares Strategy and Indie with Kingdom vs Zombies.
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.
- 2

Fallout Shelter
Free-to-play alternative to Kingdom vs Zombies — no purchase or trial window. Shares RPG with Kingdom vs Zombies.
Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.
- 3

Bloons TD Battles
Free-to-play alternative to Kingdom vs Zombies — no purchase or trial window. Shares Strategy with Kingdom vs Zombies.
Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.
- 4

Kingdom: Classic
Free-to-play alternative to Kingdom vs Zombies — no purchase or trial window. Shares Strategy and Indie with Kingdom vs Zombies.
Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.
- 5

Mr.Mine
Free-to-play alternative to Kingdom vs Zombies — no purchase or trial window. Shares Strategy and Indie with Kingdom vs Zombies.
Explore the depths of the earth and uncover hidden treasures in this addictive idle mining game. Unlock the power of your drill with hundreds of upgrades, discover mysterious relics, and unearth priceless gems. Can you master the mines and reveal their deepest secrets? Dive in and dig deep!
- 6

Yet Another Zombie Defense
Free-to-play alternative to Kingdom vs Zombies — no purchase or trial window. Shares Strategy and Indie with Kingdom vs Zombies.
Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.
- 7

Realm Grinder
Free-to-play alternative to Kingdom vs Zombies — no purchase or trial window. Shares Strategy and RPG with Kingdom vs Zombies.
Grow your realm, build alliances, and explore one of the deepest idle RPGs ever!
- 8

King Arthur's Gold
Free-to-play alternative to Kingdom vs Zombies — no purchase or trial window. Shares Indie with Kingdom vs Zombies.
Would you enjoy building CASTLES, traps and siege machines in MULTIPLAYER? And then undermine your opponents castle and collapse it with 2D PHYSICS & DESTRUCTION?