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Asteroid Bastion header image
Coming December 2026 Date not final

Asteroid Bastion

By stswoon

StrategyTower DefenseBuildingSpaceEconomy2DSingleplayerBase BuildingAliensWarArcadeWargame
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About Asteroid Bastion

Asteroid Bastion is a game tagged Strategy, Tower Defense and Building by stswoon, launching on Steam in December 2026. The quietest week ahead for games like it starts Nov 23. The Steam games most like it include Galaxy Defense War, Celestial Defense and REDCON.

Free-form space defense in real time. Mine asteroids, route power from Helios and hold off pirate fleets. Lose one Conductor and a whole flank goes dark. Build without a grid, choose your weapons and take on 21 levels.
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Launch window

Open in Launch Week Checker

Busiest weeks for games like this one in the next 12 weeks:

  • Week of Nov 2, 2026 — Packed, 199 similar games
  • Week of Oct 26, 2026 — Packed, 200 similar games
  • Week of Nov 9, 2026 — Packed, 163 similar games

Quietest: Nov 23, Dec 7, Jan 11.

Steam data

Everything Steam lists for Asteroid Bastion · record updated 1 day ago

Steam store

Overview

App ID5463560
Release dateDecember 2026
Last change number40179167
Last record update1 day ago

App info

App type
Game
Developer
stswoon
Publisher
stswoon

Platforms

Windows Linux 64-bit

Features

2
Single-playerFamily Sharing

Data from public Steam pages, updated daily; 4 days of history. LaunchRivals is not affiliated with Valve or Steam.

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