Steel Storm: Burning Retribution, a game developed by Kot-in-Action Creative Artel, with the help of the DarkPlaces engine, can be purchased on Steam for Linux with a 40% discount.
Steel Storm: Burning Retribution is a top down action shooter developed by the Kot in Action Creative Artel studio.
The game features online warfare with up to 16 players in any of the multi-player modes, fast paced gameplay, and a first-person camera mode.
Linux System Requirements:
• OS: Ubuntu 12.04 or alike
• Processor: 2.0+ GHz Single Core Processor (Dual-Core Processor recommended)
• Memory: 1 Gb RAM (2 Gb or greater recommended)
• Graphics: NVIDIA GeForce 7600GT+ or ATI Radeon 2400+ HD with 256 Mb of VRAM (512 Mb of VRAM recommended). Latest video drivers must be installed.
• Hard Drive: 900 Mb
• Input: Keyboard + mouse or generic 6-axis gamepad (XB360 gamepad is not currently supported on Linux).
More details about this game can be found on the official Steam website.