Valheim: Increase the 10 Player Slot Limit
While our servers are capable of handling more players, it's generally not recommended to extend the server's slots beyond 10 due to how Valheim's game networking works. Some of the game networking logic is handled between players, and increasing this above 10 players could lead to a less optimal gaming experience.
Nevertheless, it is possible to experiment with extending the player limit beyond this recommended cap. Although there is no official method to increase the number of slots, some plugins developed by the community might offer a solution. Examples of such plugins include MaxPlayerModifier and Valheim Plus. Be aware that using these plugins to increase the player limit may introduce instability or performance issues.
For instructions on how to install mods, please refer to: Valheim: How to use Thunderstore Mod Manager for Modding.