Crucible : Amazon Studio's free-to-play game finally launchs on steam.

Amazon launches assault on Overwatch and other eSports giants Wednesday with team shooter Crucible, aiming to expand its territory in the world of game playing. Crucible will challenge the dominance of Fortnite, Overwatch, and League of Legends, which have won legions of fans, with online match-ups pitting characters with various abilities or weaponry against one another.

 It is tailored for play on Windows-powered personal computers, playing to the strength of Amazon-owned Twitch, a popular platform for streaming games and commentary.It is the first major title from Amazon Game Studios, which is also working on a multiplayer online game based on the Lord of the Rings.

The developers call Crucible a "team-based action shooter driven by the choices you make," featuring alien adversaries.

Pick a hunter and join a match. You’ll need to coordinate with your teammates, take advantage of your hunter’s unique upgrades as you level up, and adapt to the ever-changing conditions of battle, Amazon said in a statement.

Crucible has 10 hunters that players can choose from in the beginning. This includes the game’s poster child Bugg, a robotic botanist. The various hunters come with their own set of abilities and these can be used to defeat other players as well as the planet’s local living creatures.

Amazon games also kicked off an 8-week pre-season period ahead of the beginning of Crucible Season 1. Here early players can use the 1,000 credits they earned for various in-game items as well as a pre-season battle pass that costs 950 credits. Currently out for North America, Crucible will soon come to other regions too.

Check out Crucible now on Steam.