If you have Part 1 of the miniatures expansion for Divinity Original Sin: The Board Game, then you have likely noticed that it includes four barrel miniatures. There is a miniature each for deathfog, water, fire, and poison. These miniatures, however, are not used in the game. Barrels are ultimately cut content, but Larian opted to still ship the miniatures with the game. It seemed a shame to me to have the miniatures and not use them. As such, I started to brainstorm a way to incorporate barrels into the board game. My ultimate goal was to find a way to incorporate the barrel miniatures while adhering as close as possible to the design of both the board game and to D:OS 2. Unofficial Addendum I is the result.

My fan expansion adds a new item type of barrels to the game with associated rules for both the core game and Dungeon Mode. In the video game that inspired the game, Divinity: Original Sin 2, the fire and poison barrels would correspond to the oil and ooze barrels, respectively. I have referred to them as such in my fan expansion. Barrels in the board game act both as items and as environmental hazards. Players can add barrels to their inventory or place them down on map spaces. Any barrels on a map space can be destroyed to create a new surface or to cause a devastating explosion depending on the type of damage they receive.

Since ooze (poison) barrels will not allow players to place the poison environment effect, I have included some components and modifications to make use of that. Certain card effects will now additionally place or interact with poison surfaces. Put down a poison surface with Poison Dart or ignite a poison surface with Searing Daggers. If you are playing a summoner, you now will have access to the Poison Incarnate. Don’t like that boss? Take them out with a deathfog barrel as in the video game (if you opt to play with that rule).

You can download the files for my expansion here or over at BGG.com. UAI only requires the core game to play. It can even be played without the barrel miniatures as barrel tokens are included in the print and play components. If you do check out the expansion, please let me know what you think and leave a thumbs up on BGG.com. If you have any suggestions on how to improve the expansion, feel free to let me know. If there are significant enough changes, I may release updated versions of the expansion. This page and the BGG page will be updated if that happens.

If you’d like to check out more of my game development work, take a look at my adventure site Rose Fortress for Forbidden Lands over on DriveThruRPG.

If you’d like to see an overview of what’s included, refer to my summary video from YouTube:

Downloads (Version 1, August 2025):