Developers: Sometimes You, Art-Arcade, Mahhaon, Sun Pixel
The game takes its roots from classic first-person shooters, a series of games such as Wolfenstein 3D, Spear Of Destiny, Operation Bodycount, Blake Stone and many others. The color palette is taken from Operation Bodycount, while the game uses a unique graphical style, approximately similar to Wolfenstein 3D. In Merger 3D, you'll need to pass through long levels, breaking through many crowds of enemies.
Merger 3D - STEAM Trailer
Why is Doom better than Wolfenstein 3D? Because the action feels better, faster, more dynamic, less constricting. Why is Wolfenstein 3D better than Merger 3D, which was obviously inspired by it? Because, while identical in terms of gameplay, "Wolfie" actually had a team of capable game designers behind it.