The Log Horizon TRPG is a tabletop RPG (like Dungeons & Dragons) designed by Touno Mamare and Kinuno Boushi. It plays somewhat similarly to games designed by F.E.A.R. such as Night Wizard!, but has a unique "Hate" mechanic that represents aggro in an MMO and requires the party to work together to survive enemy attacks. Along with the Rulebook and Replays, 7-Sided Workshop also publishes the Celdessia Gazette, a free monthly publication that supplies extra scenarios, monsters, and world-building for LHTRPG players.