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Alternatively you can always play Tunnels and Trolls, a great game for solo roleplay as long as you take it in Monty Python levels of seriousness due to the harshness of the rules and the comedic nature of the game itself, think of the Killer Bunny levels of stupid and fantasy mixed. Its a good game for the right type of a group or solo RP bunch of adventures released over for it too, just around $20 and all you need is basically a bunch of d6s and a notebook plus your computer for any math and pdf reading. Probably the most affordable way to play RPGs with a complete system with a world build into it even if its light and funny.