To be honest, I think the market would be miniscule.
If it's not a game, who really wants to spend time exploring a "static" environment that someone else created.
If it's not "static," meaning you can interact with it in interesting ways, then you're right back into the game design domain. Try Unreal Engine or Unity.
That's my two cents.
iClone 7... Character Creator... Substance Designer/Painter... Blender... Audacity...
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