Fortress Frontier

At a glance

Fortress Frontier is a free multiplayer strategy and simulation game that plays in your browser on remix.gg. On Foundplay since October 18, 2026.

Questions

Is Fortress Frontier free to play?

Yes. Fortress Frontier is free and plays in your browser on remix.gg. Foundplay links to it but doesn't host it.

Do I need to download Fortress Frontier?

No. It runs in a browser tab, with nothing to install.

Is Fortress Frontier safe?

Foundplay checks its link every few hours and gives it a daily safety check (malware blocklists, downloads, crypto miners, parked domains and fake virus warnings), and hides the game at once if that check fails. No check can promise a site is safe: if a game asks you to download something or for a password, leave it.

What games are like Fortress Frontier?

Ant Royale, Rocket Crew and Moon Vault, from More like this below. They're free in your browser too.

Who made Fortress Frontier?

It was made by @hazardayo_ on X.