Hi Ivvilon, IME it really depends on what you are needing, wanting, expecting... A sheet like the D&D 5e (2014) is actually a very complex sheet and would probably take a skilled sheet author weeks or more to build. It's not uncommon for skilled programmers to charge $50+/hr So complex sheets could cost $2-4K just do to the number of hours required. Less complex sheets, say something that does not require lots of programming (ie auto calculations, complicated roll templates, translation code, etc.) are going to be much less costly. Probably more like $200-1K A single page sheet with basic rolls, a few sheet calcs, and basic roll template is probably going to cost about $250. This is why the majority of sheets are community created and done as a labor of love for the particular rpg system. It also helps if an author is familiar with the rpg, especially for more complex systems. If you still want to go the route of commissioning a sheet, it's best to state exactly what you are expecting so that someone with the proper skills can make their best estimate on cost.