Yes, it's quite possible and can actually be very fun. The ideal situation is for a small group of people to play with a story teller (DM) and players, but you can play D&D alone, with just a buddy or a few people without a DM or with a full group.
Can D&D be played with 1 player?
Dungeons & Dragons can be played with only two people (playing with a dungeon master and one player) it's called — soloing. You can actually play with only one player also; I'll get to this later, at the end.
How do you play D&D without friends?
Try meetup.com, and find d&d groups in your area. The video games are fine and all, but they don't compare to sitting down with others and playing the real game. Good luck! If you're able to interact easily online, your best bet would be to find a forum that has play-by-post D&D games.11 jun 2015
Can you be a DM and a player?
No, a Dungeon Master cannot be a player. Any character the Dungeon Master plays while DMing is called an NPC (non-player character). NPCs are handled differently in the game and do not gain XP, level up or share rewards like PCs do. You can, however, make your NPC a party member or just let them tag along.15 abr 2019