No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $2.4M — a different platform, not this one.

Nightmare Reaper

For LAN play, you need to select the "OnlyByIp" branch in the game's "Beta Channel" options or download the "Lan Play" offline installer. This branch doesn't allow online play or achievements, but will let you connect to any LAN game via IP, even Steam games. A dark and violent meld of retro and modern action games, inspired by the classic 2.5D first person shooters of the 90s, with elements of modern looter shooters and rogue-lites. Intense and addictive gameplay Tons of enemies are crammed in open-ended levels full of surprises and geysers of blood and treasure. Character progression Use the gold you find to purchase tons of character upgrades and new abilities via minigames. Ludicrous weapon variety 80 unique weapons that can drop as loot and can contain a funky mix of over 30 enchantment types. SO much more Music and audio by the great Andrew Hulshult . Non-intrusive but mysterious story. Many game modes. A mix of manual and random level generation. Tons of random events and secrets. You rise to prevent her doom and duke it out with nightmares to reap salvation in blood. Mutliplayer update: Grab your squad and prepare to descend into the nightmare. Team up with up to 3 friends and blast your way through the nightmare together. Experience the full campaign in online co-op while unleashing a massive arsenal of insane weapons and upgrades. Go head to head in deathmatch where custom game modes and random weapons make it a unique nightmare.