S4 League is a third-person sci-fi shooter formerly developed by Pentavision, with manga style graphics and MMO elements. S4 League offers several game modes with battles that are fought in teams, where points are earned for leveling up and improving players' characters. The fast-paced gameplay places emphasis on skill and keeps an ongoing record of each player's achievements over time. S4 League's gameplay modes include Deathmatch, Touchdown, Chaser, Battle Royale. The game is free-to-play, with an optional item shop.

- Genre: Action, Sci-fi, Third-person shooter
- Platform: Windows
- Website: xero.gg