I have looked and looked online but haven't found a single site that has any pre-made adventure for Open d6. I was hoping that someone would know of a site where I could find some.
[RPG] Are there any Open d6 pre-made modules/adventures out there
d6-systempublished-adventures
Related Solutions
The article D&D Adventurers League Content Open To All announced where and when they are releasing Adventurer's League content to everyone, not just organized play.
From the above link:
We also listened to the D&D fans who wanted more bite-sized adventures to pick up and play with their group in a pinch. All of the adventures created for the D&D Adventurers League going forward will be available to all fans of D&D. The Dungeon Masters Guild is now the hub for distributing D&D Adventurers League content. You can download PDFs of the adventures released periodically for a just a few dollars. Check out what’s available right now from previous Adventurer’s League seasons at dungeonmasterguild.com.
You can purchase previous content at the Dungeon Masters Guild website.
Minsc is mentioned, although doesn't feature as an actual character, in Baldur's Gate: Descent into Avernus
As you noted, Minsc is mentioned in passing in the D&D Encounters module Murder in Baldur's Gate (written for 3.5e, 4e, and the "D&D Next" 5e playtest), specifically that there is a statue of him and Boo in the The Wide, the great marketplace in the Upper City. This detail is featured again in BG:DiA, where it is explained that what had been presumed to be a statue was, in fact, actually the petrified characters themselves - and at some point in the years between MiBG and BG:DiA they were cured and set to wandering the world again:
Statue of Minsc and Boo. For years the Wide hosted one of the city’s most cherished landmarks: the Beloved Ranger, a statue of a powerful warrior in plate mail wearing a cheerful grin and cradling a hamster in his hands. Recently, though, the statue was revealed to be the Rashemi hero, Minsc, and his “miniature giant space hamster” companion, Boo, trapped under the effects of petrifying magic. When the magic was dispelled, it freed the heroes to walk the world once more but robbed the Wide of a bit of its charm. The merchants complained loudly, and a replacement statue of Minsc and Boo was promptly commissioned and set atop the pedestal where the actual heroes stood for years.
However, he does not otherwise feature in the adventure. It seems likely that this specific detail is a way of keeping the character available for use in future 5e material - establishing that Minsc & Boo have been petrified for the last hundred or so years neatly avoids the issue that a normal human like Minsc who was active in the late 1300s DR should have been dead (or at best extremely old) by the 1480s and 90s, when 5e's FR material is set. (As a miniature giant space hamster, we can probably assume that Boo's lifespan isn't an issue.)
He's also seen as an easter egg in an illustration in Waterdeep: Dragon Heist
The section of W:DH's introduction describing The Yawning Portal tavern includes a cartoon illustration of the tavern's layout full of depictions of famous characters of D&D and Realms lore enjoying the tavern's attractions. Minsc and Boo are number 22, located between Volothamp "Volo" Geddarm and Krydle (a character who features alongside Minsc & Boo in the IDW D&D comics).
Of course, this depiction doesn't imply anything canonical about Minsc & Boo's activities or whereabouts.
Minsc and Boo feature in WotC's The Descent livestream event
If you widen the net a little, Minsc doesn't feature in any other officially published written material, but his character did appear in Wizards of the Coast's 2019 live play livestream event The Descent, in which he is found trapped in Avernus with a motley collection of other heroes and eventually manages to escape back to Baldur's Gate (though the canonicity of this adventure may be questionable).
Here he was played by Jim Zub, who had previously written the character in the IDW D&D comics. Boo was played by Matt Mercer, of Critical Role.
Best Answer
Part of the problem is that you're probably searching for "open d6" adventures, when most publishers don't treat Open D6 as separate from D6 System and use the original term instead. Since "Open D6" is technically just the name of an open-licensed document that provides rules from D6 System, and "D6 System" has much more name recognition than "Open D6", this isn't that odd. It would be like searching for "d20 SRD adventures" when really most of those adventures are for D&D 3.5e. There are exceptions, of course, but they're rare:
Another issue with searching for "Open D6" adventures is that many publishers are using the core of Open D6 as a foundation to build their own game on top of, and releasing adventures for that game specifically. Examples include Mini Six, a very popular, streamlined variant of Open D6, which appears to be as or even more popular than the OGL core alone; Mighty Six, a superhero RPG based on Open D6; Heaven's Shadow, an RPG that is based on Mini Six instead of directly on Open D6; and Breachworld, another self-contained RPG based on Mini Six rather than Open D6. Some examples of such adventures written for a game based on Open D6 rather than advertised for Open D6 itself:
(Notably, Azamar is by the same studio that does d6 Magazine, which just underlines how small the Open D6–based segment of the RPG industry is.)
But a third part of the problem is that there just isn't much adventure support for a niche system like D6 System / Open D6, especially since it can work with any genre or setting, making an adventure "for Open D6" not necessarily useful for every GM running Open D6, and therefore much less worthwhile publishing. What's out there is mostly settings powered by Open D6, new games built on top of Open D6 (or built on top of a game built on top of Open D6!), and new rules compatible with Open D6. Adventures are mostly left up to the GM to create to suit the setting they're using, though there are a few rare exceptions, like in d6 Magazine or adventures for one of the RPGs based on Open D6.
The expectation really seems to be that Open D6 GMs will create their own adventures that suit their individual games, or they'll be playing with old or new D6 System material that isn't directly Open D6.