Grendel's Cave is a free on-line adventure game based on the mythical fantasy characters Beowulf and Grendel. It is Norse Mythology, Dark Age and Viking adventure based. Role-play in a free medieval, RPG, browser-based game. No downloads required.

Play for free and level up! Cash prizes for Grendel Slays. Daily cash prizes just for playing the game! Please see the Notice page for new rules regarding leveling and winning prizes.

Grendel's Cave now incorporates speedrunning, allowing players to compete for the fastest times to kill Grendel. See the Notice page for information about speedrunning in Grendel's Cave.

Join a tribe and bring glory to you kin. Please see the Tribe Ranking page for current rank of Tribes.

Grendel's Cave is free for all to play! You can play free for as long and as much as you want. If you die in higher level kingdoms you can start over or for a small payment you can resurrect your thane and continue. Not required to play, but you can pay a small amount for many fun extras in the game.