Free games like Atom Zombie Smasher
Below are 8 free-to-play Steam games similar to Atom Zombie Smasher, 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 Atom Zombie Smasher page.
Ranked picks
- 1
Zombie Defense
Free-to-play alternative to Atom Zombie Smasher — no purchase or trial window. Shares Strategy and Indie with Atom Zombie Smasher.
A modern hybrid of the classic RTS and modern Tower Defense. Recruit soldiers, place them on slots and let them shoot incoming waves of zombies by their own. Order supplies, throw grenades, order airstrikes and many more... Perfect mix of strategy, tactics and micromanagement.
- 2
Yet Another Zombie Defense
Free-to-play alternative to Atom Zombie Smasher — no purchase or trial window. Shares Strategy and Indie with Atom Zombie Smasher.
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.
- 3
War of Dots
Free-to-play alternative to Atom Zombie Smasher — no purchase or trial window. Shares Strategy and Indie with Atom Zombie Smasher.
Easy to learn, hard to master. A simple & free RTS game.
- 4
Bloons TD Battles 2
Free-to-play alternative to Atom Zombie Smasher — no purchase or trial window. Shares Strategy and Indie with Atom Zombie Smasher.
From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons!
- 5
Dota 2
Free-to-play alternative to Atom Zombie Smasher — no purchase or trial window. Shares Strategy with Atom Zombie Smasher.
Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own.
- 6
Infinitode 2 - Infinite Tower Defense
Free-to-play alternative to Atom Zombie Smasher — no purchase or trial window. Shares Strategy and Indie with Atom Zombie Smasher.
Infinitode 2 - a strategy in the Tower Defense genre, in which the player will have to build towers to protect his base from endless waves of enemies. The game features huge maps, lots of towers, resource miners, upgrade tree and map editor.
- 7
Outpost
Free-to-play alternative to Atom Zombie Smasher — no purchase or trial window. Shares Strategy and Indie with Atom Zombie Smasher.
Outpost brings the perfect mix between survival and roguelite gameplay. Start the game in a randomly generated environment and try to adapt, and make it through as many nights as possible. How long can you survive?
- 8
Crystal Clash
Free-to-play alternative to Atom Zombie Smasher — no purchase or trial window. Shares Strategy with Atom Zombie Smasher.
Crystal Clash is a mix of Lane Battles and Deckbuilding - with action-packed tug-of-war strategy, just like your favorite RTS mods from back in the day! :) Play 2v2 or co-op with a friend, or pair up with new allies and enemies! Collect cards, build your decks and have fun crushing your enemies!