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 $647.4K — a different platform, not this one.

Volgarr the Viking

Volgarr the Viking is included in Volgarr the Viking I & II Bundle Remember when games were tough? Return to the Golden Age of arcades with an all-NEW hardcore action experience that pulls no punches. Volgarr the Viking possesses all the hallmarks of the true classics - simple controls, high challenge, and meticulous design - combined with hand-made pixel animation, an epic soundtrack, and buckets of blood. Flex your gaming muscles and step into the arena with Volgarr the Viking. We dare you. Classic hardcore arcade action with support for Dinput and Xinput controllers! Seven worlds to explore across 30 maps, all bristling with high quality handcrafted pixel animation. Over 30 unique traps and enemies, including huge bosses that take up the entire screen!