Grimstar is a Real-time Strategy game. Build your base in a hostile environment, train your army, gather resources, defend your mining operations. The more you mine - the more hostile the alien environment will become. Your ultimate goal is to completely colonize the uncharted world.

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Update 1.2.0 is available!

Update 1.2.0 is available!

News

The complete redesign! Update 1.2.0 for Grimstar: Prequel is now available. We are very grateful for all your feedback on Steam and Discord, which made...

Grimstar: Prequel is OUT NOW!

Grimstar: Prequel is OUT NOW!

News

Greetings, fellow adventurers! The time to explore alien planets is now! I am excited to announce that Grimstar: Prequel is now available on Steam!

Grimstar: Prequel coming out on October 26!

Grimstar: Prequel coming out on October 26!

News

A couple of days left until the release I’m excited to announce that after 2 years of development everything is on schedule and Grimstar: Prequel is...

Welcome to the Steam Next Fest: October 2022 edition

Welcome to the Steam Next Fest: October 2022 edition

News

We are super excited to let you know that Grimstar: Prequel is a part of the Steam Next Fest! Play The Demo! Watch the live stream! Ask The Dev!

Play Test on Steam

Play Test on Steam

News

Play Test starts now on Steam, any Kind of Feedback is welcome!

First Pictures of new Map Type

First Pictures of new Map Type

News

First Pictures of new Map Type with Factorys and Let's Play Videos from Steam Next Fest.

New Steam Trailer

New Steam Trailer

News

News about New Steam Trailer and German Translation is finished. Also about new Release Data of the Final and Free Version of the game.

Last Dev Log of "Planet27" and first Dev Log of "Grimstar"

Last Dev Log of "Planet27" and first Dev Log of "Grimstar"

News

Next devlog for the Real Time Strategy/Tower Defence Game „Grimstar" (old Name Planet27).

Next Dev Log of "Planet27" #6

Next Dev Log of "Planet27" #6

News

Next devlog for the Real Time Strategy/Tower Defence Game „Planet27”.

Next Dev Log of "Planet27" #5

Next Dev Log of "Planet27" #5

News

Next devlog for the Real Time Strategy/Tower Defence Game „Planet27”.

Next Dev Log of "Planet27" #4

Next Dev Log of "Planet27" #4

News

Next devlog for the Real Time Strategy/Tower Defence Game „Planet27”.

Next Dev Log of "Planet27" #3

Next Dev Log of "Planet27" #3

News

Next devlog for the Real Time Strategy/Tower Defence Game „Planet27”.

Next Dev Log of "Planet27" #2

Next Dev Log of "Planet27" #2

News

Next devlog for the Real Time Strategy/Tower Defence Game „Planet27”.

Next Dev Log of "Planet27"

Next Dev Log of "Planet27"

News

Next devlog for the Real Time Strategy/Tower Defence Game „Planet27”.

Second Dev Log of "Planet27"

Second Dev Log of "Planet27"

News

Second devlog for the Real Time Strategy/Tower Defence Game „Planet27”.

First Dev Log of "Planet27"

First Dev Log of "Planet27"

News

First devlog for the Real Time Strategy/Tower Defence Game „Planet27”.