| Dimension 20 | |
|---|---|
 | |
| Genre | |
| Created by | Brennan Lee Mulligan |
| Based on | Dungeons & Dragons 5th edition |
| Directed by | Michael Schaubach |
| Starring | |
| Country of origin | United States |
| Original language | English |
| No. of seasons | 22 |
| No. of episodes | 245 (plus 6 one-shots) |
| Production | |
| Executive producers |
|
| Producer | Rick Perry |
| Running time | c. 60–180 minutes |
| Production company | CollegeHumor |
| Original release | |
| Network | Dropout |
| Release | September 26, 2018 – present |
| Infobox instructions (only shown in preview) | |
Dimension 20 is a tabletop role-playing game show produced by and broadcast on Dropout, and created and generally hosted by Brennan Lee Mulligan as the show's regular Dungeon Master. Most of the games use Dungeons & Dragons 5th edition. Long seasons, featuring a core cast of players in seventeen or more episodes, are interspersed with shorter side quests, featuring a rotating cast in ten or fewer episodes.