Gratuitous Space Battles Alternatives

Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.

The space-based MMO Vendetta Online balances an online trading system with tense ship-to=ship combat.

Plants vs. Zombies is a tower defense video game by PopCap.

Official Webpage for Evochron Mercenary, a 3D space combat and trader simulation. Screenshots, free demo, forum, cheats, videos, and more.

Epic game of tower defense available across multiple platforms.

Galaxy on Fire is a space combat and trading simulation.

Fieldrunners is a game developed by Subatomic Studios, for Steam/PC, iPhone/iPod Touch, iPad...

Oolite is a space sim game, inspired by Elite.

OGame is an addictive, Massively Multiplayer Online, Real-time Strategy, Space-war, and Money Management Browser-based video game develop by Gameforge AG.

Revenge of the Titans is a great Tower-defense game with strong Strategy, Sci-fi, Action, Isometric, and Single-player elements.

Freelancer is a Space Trading, Combat, Exploration, Single and Multiplayer Flight Simulation developed by Digital Anvil and published by Microsoft Game Studios.

Unscripted, living and thriving universe.