Steel Storm: Burning Retribution

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Steel Storm: Burning Retribution is a top down action shooter with old school spirit. It marks the return of top-down shooters with new twists. The game has score oriented competitive gameplay, and is designed for people who like fast paced action, hordes of smart enemies, destructible worlds and ground shaking explosions.
The events take place in an alternative universe where you control an advanced hovertank, packed with the most advanced and sophisticated weapons. Your task is simple, but nevertheless not trivial. In the fight against extraterrestrial invaders, you must prevail!

Key features:

Enjoy fast paced and streamlined gameplay
Engage in online warfare with up to 16 players in any of the multi-player modes
Pave your way to victory with the burning remains of your enemies through 25 different missions
Complete Challenges and unlock First-Person camera mode
Create new missions or modify existing ones using the unique real-time collaborative mission editor and share them with the world