Independent game studio

Games from the edge of the map.

Altered Realms makes focused, carefully tuned games set in strange places worth defending. Our first title, Garrison Zero, is a free tower defense game for Windows on Steam.

Meet Garrison Zero Press kit

Our games

Now in development

Frontier Defense Corps turrets holding a canyon against the Kethra Swarm

Free on Steam · Coming soon

A frontier colony, one fusion reactor and a swarm that has woken up hungry for its heat. Build an open-field maze, upgrade your defenses and hold the Ember Line.

The studio

Small team. Big swarms.

We build original worlds with their own people, problems and politics, then put you in charge of keeping the lights on.

Original worlds

Our settings, factions and characters are our own. No licences, no borrowed lore, no checklists.

Free means free

Garrison Zero is free on Steam with no ads, no microtransactions and no in-game store.

Honest about tools

We use modern tools, generative AI included, and say so plainly. Every asset is directed, curated and tuned by hand. How it's made.

Say hello: contact@alteredrealms.com