Free games like Heat Guardian
Below are 8 free-to-play Steam games similar to Heat Guardian, 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 Heat Guardian page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Heat Guardian — no purchase or trial window. Shares Action and Indie with Heat Guardian.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Unturned
Free-to-play alternative to Heat Guardian — no purchase or trial window. Shares Action and Indie with Heat Guardian.
You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.
- 3
SCP: Secret Laboratory
Free-to-play alternative to Heat Guardian — no purchase or trial window. Shares Action and Indie with Heat Guardian.
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.
- 4
Poppy Playtime
Free-to-play alternative to Heat Guardian — no purchase or trial window. Shares Action and Indie with Heat Guardian.
You must stay alive in this horror/puzzle adventure. Try to survive the vengeful toys waiting for you in the abandoned toy factory. Use your GrabPack to hack electrical circuits or nab anything from afar. Explore the mysterious facility... and don't get caught.
- 5
Cry of Fear
Free-to-play alternative to Heat Guardian — no purchase or trial window. Shares Action and Indie with Heat Guardian.
Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions. You play as a young man desperately searching for answers in the cold Scandinavian night, finding his way through the city as he slowly descends into madness.
- 6
No More Room in Hell
Free-to-play alternative to Heat Guardian — no purchase or trial window. Shares Action and Indie with Heat Guardian.
The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare.
- 7
Super Animal Royale
Free-to-play alternative to Heat Guardian — no purchase or trial window. Shares Action and Indie with Heat Guardian.
Welcome to the coziest way to kill your friends. Super Animal Royale is a 64-player, top-down 2D battle royale where adorably murderous animals fight tooth, claw, and machine gun. Then, relax in Super Animal World with fishing, hamsterball races, and story quests before the next fight to the death.
- 8
Darwin Project
Free-to-play alternative to Heat Guardian — no purchase or trial window. Shares Action and Indie with Heat Guardian.
In Darwin Project, ten inmates must survive the elements, track each other, fight, craft tools, and use their social skills to be the last one standing. It's a unique take on battle royale with a Show Director to influence the match and Spectator Interactions to create a one-of-a-kind game show.