Fleetbreakers is an action RTS roguelite from Last Keep, a studio whose Steam page credits its team as the creators behind Halo Wars and Age of Empires. You command squadrons in real time from a mothership, launch abilities, gather resources and pick upgrades across short, replayable missions pushing deeper into Voltari-controlled space.

Chart credential: Fleetbreakers is a new entry at #48 on Steam 250’s 7-day chart, on a rank score of 7.12 from 38 reviews at 97% positive. Released into Early Access 15 September 2026. Position read 19 September 2026.

Key features

RTS decisions without the build-up

Steam states the game is built for players who want the satisfaction of RTS decision-making without the long buildup. This is the genre’s real accessibility problem: the first ten minutes of a traditional RTS are economy busywork before any decision matters. Cutting straight to readable battles is what lets a strategy game work in a twenty-minute session.

You lead from the mothership

Rather than controlling every unit, you command from a single mothership whose abilities can protect the fleet, punish enemy formations or open a path. Concentrating player agency into one unit plus squadron orders removes the mechanical execution barrier that keeps most people out of RTS games, while leaving the interesting choices — what to commit, and when — intact.

Run-based fleet building

Each run lets you spend resources, unlock squadron options and combine units with upgrades that change your approach. Roguelite structure solves the RTS replay problem directly: a campaign mission is only interesting once, but a run whose fleet composition is different each time keeps the same maps worth replaying.

Where to find it

Fleetbreakers is on Steam at $9.89, a launch discount at the time of writing. Single-player, with full controller support, Steam Achievements, Steam Cloud and Family Sharing. Developed by Last Keep and published by Level Up Gaming.

The honest caveat

Fleetbreakers is in Early Access, and its 97% positive score rests on just 38 reviews. The pedigree is real and the demo has been public for some time — the game was previously shown under the name Project Citadel — but scope, balance and content volume are all still moving. Early Access ratings on small samples routinely shift by ten points or more once the audience widens.

Frequently asked questions

Who is making Fleetbreakers?

Last Keep, published by Level Up Gaming. The Steam store page credits the team as the creators behind Halo Wars and Age of Empires.

Is Fleetbreakers in Early Access?

Yes. It entered Early Access on 15 September 2026, so content and balance are still changing.

How much does Fleetbreakers cost?

It is 9.89 dollars on Steam as of 19 September 2026, which reflects a launch discount.

Is Fleetbreakers multiplayer?

No. Steam lists it as single-player only.

Is there a Fleetbreakers demo?

Yes. A separate Fleetbreakers Demo is listed on Steam.

Was Fleetbreakers called something else?

It was previously shown under the name Project Citadel before launching as Fleetbreakers.

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