There's more to it than prowling around dungens and looting some poor Dragon's treasure.
But not much more. Role playing is like free form acting: a little script, a lot of adlibbing and the odd lucky dice roll.  No it's not a computer game! We use pen and paper and lots of dice.
But these ideas should work in a Stargate computer game. Hint.
Below are several of my roll playing works and works in progress.
Stargate fun
The Ring of Rings
Goa'uld Agriculture
Goa'uld Industry
Ancients heavy  Industry
Few have noticed that the explanation of the gate number sequence is incorrect.
I've fixed it