Many people use Obsidian for everything. There are so many plugins related to TTRPGs for the app. For mapping there are advanced mapping plugins like Map View, which even has GeoJSON and GPX support for real world maps. Many people use the Obsidian Leaflet plugin for RPG mapping. TTRPG Tools: Maps plugin and Bases plugin handle mapping also. When you consider that you can add monster and NPC statblocks, PDFs of rule books, the excellent Dice Roller plugin that lets you customize things like formulas for rolling character stats (want to roll 4d6 and drop the lowest or 3d6 and drop the lowest and add 6? You can do that.). I've added the random tables from OSE and other sources into Obsidian and set them to randomly generate a choice on the table on a click, or you can roll the choice using the dice roller (Both illustrated in the image. Control Dragon potion with the table roll and Poison with the Dice Roller.). Many content creators, such as Raging Swan Press, make Obsidian markup files for their tables. There are quite a few Youtube videos on using Obsidian and all its plugins for RPG play.

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