Free games like ZeroZone2020
Below are 8 free-to-play Steam games similar to ZeroZone2020, 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 ZeroZone2020 page.
Ranked picks
- 1
Bloons TD Battles 2
Free-to-play alternative to ZeroZone2020 — no purchase or trial window. Shares Action and Strategy with ZeroZone2020.
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!
- 2
Crystal Clash
Free-to-play alternative to ZeroZone2020 — no purchase or trial window. Shares Action and Strategy with ZeroZone2020.
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!
- 3
Toy Shire: Room One
Free-to-play alternative to ZeroZone2020 — no purchase or trial window. Shares Action and Strategy with ZeroZone2020.
Are you prepared for a thrilling toy army tower defense adventure? Welcome to the Toy Shire! Battle diverse foes in various locations, defend your family, and repel foes from your area. Save the world by strengthening your defense with toy towers! FULL GAME AVAILABLE NOW!
- 4
Ajax’s Trial
Free-to-play alternative to ZeroZone2020 — no purchase or trial window. Shares Action and Strategy with ZeroZone2020.
Legendary Hoplite: Ajax's Trial is the prologue version of Legendary Hoplite, a game that combines Tower Defense and Action RPG genres. In this game, you'll need to build fortifications, upgrade your army, and create your own unique strategy to fight off hordes of monsters across 7 levels.
- 5
Sporadic Spire
Free-to-play alternative to ZeroZone2020 — no purchase or trial window. Shares Action and Strategy with ZeroZone2020.
Defeat hordes of enemies in this aesthetic tower defense game. The random terrain generation provides a beautiful environment and a unique experience every time you play.
- 6
Protect My Cheese
Free-to-play alternative to ZeroZone2020 — no purchase or trial window. Shares Action and Strategy with ZeroZone2020.
A stunning and chaotic tower defense strategy game where we play as cats to defeat the cheese-hungry rats. Survive against waves of enemies and guard the cheese.
- 7
Legendary Hoplite: Arachne’s Trial
Free-to-play alternative to ZeroZone2020 — no purchase or trial window. Shares Action and Strategy with ZeroZone2020.
Legendary Hoplite: Arachne’s Trial is a combination of Tower Defense and Action RPG. Upgrade your army, get the best gear, and craft unique strategies across 10 levels. Face Arachne, and seamlessly transfer progress to the main game.
- 8
Zombie Gunship Survival
Free-to-play alternative to ZeroZone2020 — no purchase or trial window. Shares Action with ZeroZone2020.
The Apocalypse came and went. All we have left is our will to survive, the endless hordes of zombies, and enough bullets to rip them all to shreds.