It might not look like the most graphically impressive shooter around, but the WWII shooter Easy Red [Steam] is being reviewed rather well for the gameplay.
Linux support arrived yesterday, although it doesn't yet have a SteamOS icon to indicate Linux support it was announced directly on Steam.
The graphics really aren't great, but it has gameplay that actually looks decent enough, including vehicles which looks fun.
About the game:
Welcome to the Operation Overlord. Prepare to land on all five Normandy sectors: Omaha, Juno, Sword, Utah and Gold. Fight on the sand, by the forests, parachute on the fields and conquer the hills: Welcome to Easy Red.
In Easy Red you will fight on the most significant battles of the D-Day, from the sea landings to the capture of Caen. You will able to drive vehicles, use many weapons, command your squad as team leader or take cure of it as a medic, refill magazines from your inventory, parachute from the sky, and much more.
Buying Easy Red you will have access to all the future DLCs and updates.
I've reached out to the developer for review keys, so hopefully we will be able to give it some thoughts soon.