as a rule, Valheim has no official modding tools and offers no official mod support. Of course, that hasn’t stopped the community from making mods for the survival box, and obviously Iron Gate is flattered by this, but the studio is asking both players and mod makers a few things to consider.
For one, the post reiterates that mods are not officially supported and therefore warns players not to do so at their own risk. In addition, the studio has asked that players who create mods not charge for them in order to preserve “the creative and open spirit of modding itself,” although it also encourages players to give a financial tip for the modders’ efforts give.
Finally, the post urges mod creators to clearly state that their work is not officially endorsed by Iron Gate. All in all, these are not exact EULA instructions, but they are some good things to keep in mind modders and gamers.
There’s a whole lot long thread about moving to Reddit, where players point out that some modders have used Patreon to effectively sell mods behind a paywall, which has been very common in many modding communities in recent years. Presumably Iron Gate’s statement is a reaction – and a kind of warning – to this.