Unreal Tournament, the one that was abandoned in favor of Fortnite (eugh). Like sure it would never be a big hit like Fortnite, Arena Shooters are out of fashion after all, but Epic didn’t even give it a chance for starters, they basically just rushed it out the door with a skeleton crew, no budget whatsoever and were begging for community members to do free work on the game for them. In retrospect the game was doomed to fail from day one.