Microsoft has announced that Coreplay's space shooter Ion Assault and CXTM's side-scrolling beat 'em up The Warriors: Street Brawl will debut on Xbox Live Arcade alongside Nhilistic's Zombie Apocalypse this Wednesday, September 23.

All three of the downloadable Xbox 360 games are priced at 800 MS Points ($10). Furthermore, each game sports offline multiplayer for up to four players, with The Warriors: Street Brawl and Zombie Apocaylpse offering online co-op for up to four players as well. Ion Assault also features online co-op but only supports two players.

A new Geometry Wars-esque shooter from German developer Coreplay is coming to Xbox Live later this summer.

The space shooter offers four scenarios, with typical features such as powerups and upgradeable spaceships.

A gameplay element based on energy particles provides the game's primary twist. As publisher Black Inc. describes:

In Ion Assault, instead of conventional weapons, players use the free energy particles that are abundant in space to fend off swarms of aliens. The particles are bundled and the player is able to... Read more