HITMAN World of Assassination

HITMAN World of Assassination is a stealth action game from IO Interactive in which you play Agent 47, a master assassin. It brings together the best of HITMAN, HITMAN 2 and HITMAN 3: the main campaigns, contracts mode, escalations, Elusive Target arcades and live content. The action takes place in more than 20 locations around the world.

Every mission is a sandbox with targets to eliminate, and how you do it is up to you: change disguises and blend into the crowd, stage an “accident”, sneak around or go in loud. Your deadliest weapon is creativity: the locations are full of detailed routines, intriguing characters and quiet opportunities, and the missions are built to be replayed. There is also a mode with roguelike elements and long-term progression.

According to HowLongToBeat (the Hitman 3 entry), the story campaign takes about 8 hours and a 100% run about 64. A month is plenty for the story, but most likely not enough for 100%. The campaigns are single-player; community contracts and live events work only with a connection.