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 $691.5K — a different platform, not this one.

Screencheat

Screencheat is a ridiculous competitive split-screen first-person shooter where everyone is invisible, so players are forced to look at each other’s screens in order to win. Supporting both local and online multiplayer, combat in Screencheat is fast and furious with a wide variety of one-hit kill weapons ranging from traditional guns like the blunderbuss or grenade launcher to unique options such as a hobby horse, a modified car engine that shoots bouncing plasma balls, and a teddy bear loaded with explosives. Ten unique and crazy weapons - Ranging from the dependable Blunderbuss to the heroic Hobby Horse to the completely crazy Chefolet (a car engine that fires ricocheting energy balls), all are designed to deliver deadly satisfaction. Each weapon comes with its own unique advantages and disadvantages, encouraging wildly different play styles. These include not only the way a weapon shoots but also the "tells" the weapon leaves such as the smoke from the blunderbuss or the trail of fire behind the Hobby Horse. Nine game modes on or offline - From traditional favorites such as Deathmatch to the completely unique Murder Mystery that challenges you to find and frag your specific target with a specific weapon. Play in teams or all against all. Challenge up to seven of your mates on the couch or online or a combination of both -- the game is always split screen whether you are on or offline. Map navigation - In the spirit of the best arena shooters, you’ll spend time traversing 10 maps via air vents and trampolines until you’ve acquired your target and fragged them accordingly. Each map is designed with color-coded areas as well as plentiful landmarks such as statues, paintings, and furniture that allow you to quickly locate other players without being able to actually see them. Customize and mutate - Inspired by games like Towerfall, we've provided players with a highly granular level of customisation to play the game the way they want to. Choose which weapons you'll allow, how and when they can be swapped or reloaded, apply time limits, adjust the victory conditions, penalties, and more. To really mix it up stack on some Mutators such as slow mode, low gravity, or flappy jump.