keithcurtis said: Short answer: If Gloomstalker had been published in the pages of Curse of Strahd, it would be included. (it hasn't) Slightly longer answer: Wizards of the Coast publishes a document called the System Rules Document (SRD). This contains a sampling of the material in the Player's Handbook. Enough to play the game, but it does not include all of the classes, races (species), spells, and so forth. This is so that: Third party content creators can have enough freely available rules to write and sell basic adventures without purchasing a license from the publisher, and New players have a free subset of the rules to try out before they purchase. If a rule, class, race, background or other feature is available in the SRD, it's available for free on Roll20 (and most other VTTs). Otherwise it requires a purchase. This is the same as if you were purchasing physical books. If the creator of your game has a collection of purchased materials (we call those "Compendium Sources", here) they might elect to share access to some or all of these with the players in their games. If you want to play a Gloomstalker ranger, and have not purchased the 5.5e Players Handbook, or the 5e Xanathar's Guide to Everything, you would need to either: Be in a game where someone has purchased those items and has decided to share them with their players, or Copy the material from a place where you do own the materials (a print book, DnDBeyond, etc), and manually paste or transcribe the features onto your character sheet. I'm asking all these questions because I'll be the one narrating this game. I've already created the first part with my own material and the free D&D material offered by the marketplace, but it doesn't have everything, and it's a pain to keep creating monsters and NPCs. So I'm deciding whether to buy the Module or just an add-on. I'm still trying to understand the prices. So far, I understand that the Bundle costs US$46.73 (approximately R$250.00) and the Module costs US$24.99 (approximately R$140.00), which are significant expenses (I'm not counting a group contribution). That's why I want to know if one of these two is worthwhile, or if I should just buy an add-on. What would be the price of a creature add-on, for example, and how to do that? Do you understand? But thank you very much for your attention and the answers you've given so far! Thank you ☺️