✓ Both are first-person shooters — sharing shooter, first-person shooting and adventure storytelling
≠ Where it differs: brings dark, oppressive atmosphere, ranged combat and setting scifi, while skipping cozy, relaxing feel
Broforce is a parody run-and-gun game made in a 2D side-scrolling manner. Players are offered to take control of a Bro – one of the soldiers of the special Broforce unit. Actually, players are going to assume roles of several protagonists (all are Bros) while completing game levels.
Where it drifts furthest from Rainbow Cotton: setting and visuals.
It predates Rainbow Cotton by 9 years, with what that implies technically.