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 $6M — a different platform, not this one.

Sniper Ghost Warrior Contracts

Fulfill contracts that offer clear objectives with a fixed monetary reward and options to complete bonus challenges for payouts. With hundreds of ways to take down a wide range of targets, Contracts offers precise, strategic sniping gameplay at its absolute best. Play as a paid assassin; a hit man for hire, and beware of rival snipers who won’t hesitate to disrupt your best-laid plans. Open-ended contracts, bounties and challenges deliver strong replayability options to eliminate targets and collect cash to redeem for upgrades. An all-new Dynamic Reticle System offers the most realistic and intense sniping experience. Upgradeable AR Mask with the ability to scan the environment and highlight weakness or objects of interest. An arsenal of new gadgets to play with including drones, remote sniper turrets and gas grenades. Show off your stealth skills, execute silent takedowns and be rewarded for a strategic play style. Battle the brutal wilderness of Siberia and fight to survive the intensity of snow-covered mountains, lush forests and secret bases hidden deep in the mountainside. Including GOG exclusive weapon skin .