Free games like Planet TD
Below are 8 free-to-play Steam games similar to Planet TD, 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 Planet TD page.
Ranked picks
- 1
Zombie Defense
Free-to-play alternative to Planet TD — no purchase or trial window. Shares Strategy and Indie with Planet TD.
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
Infinitode 2 - Infinite Tower Defense
Free-to-play alternative to Planet TD — no purchase or trial window. Shares Strategy and Indie with Planet TD.
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.
- 3
Galaxy Life
Free-to-play alternative to Planet TD — no purchase or trial window. Shares Strategy with Planet TD.
The universe is full of Starlings, tiny orange aliens that want to take over the galaxy. Create your own space colony, fight epic battles and discover new planets. Train your soldiers, develop your technology and create unimaginable gadgets. Enjoy this huge social game with friends!
- 4
Bloons TD Battles 2
Free-to-play alternative to Planet TD — no purchase or trial window. Shares Strategy and Indie with Planet TD.
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
Crystal Clash
Free-to-play alternative to Planet TD — no purchase or trial window. Shares Strategy and Casual with Planet TD.
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!
- 6
Dota 2
Free-to-play alternative to Planet TD — no purchase or trial window. Shares Strategy with Planet TD.
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.
- 7
Idle Hero TD - Tower Defense
Free-to-play alternative to Planet TD — no purchase or trial window. Shares Strategy and Indie with Planet TD.
Endless idle tower defense game full of deep strategy and combat mechanics. Unlock and upgrade dozens of epic fantasy heroes to defeat an infinite swarm of enemy monsters. Strategize hero positions, synergies, and skills for an effective defense, then sit back and let the auto-battler do its thing!
- 8
War of Dots
Free-to-play alternative to Planet TD — no purchase or trial window. Shares Strategy and Indie with Planet TD.
Easy to learn, hard to master. A simple & free RTS game.