Invariant is an upcoming FPS that those yearning for Half-Life 3 should love

Battling your way through an eerie research facility infested with strange creatures? Check. Lots of dudes in lab coats? Check. A trip to a sub-zero location? Check. Despite having all the hallmarks of what FPS fans expect from the still-absent Half-Life 3, this is actually Invariant, a new first-person shooter that certainly channels plenty of energy from Valve’s iconic series.