This name has potential.
249,000 exact monthly searches, .org, info, biz. .us all taken, Estibot appraising it as 13K (that doesn't mean much but shows potential by the numbers) - You clearly have a sizeable audience that has interest in the Adventure Game genre that is specifically looking for content you can put on the site and it can be monetized.
I wouldn't bother trying to resell undeveloped, you may get an $xx - low $xxx offer (if lucky) but video game related domain names are not hot because they're being built out-by mainly hobbyists and enthusiasts with less commercial interest. A start-up with a major budget will more likely stick to a .COM to buy for the sake of developing.
If you develop it out with some keyword-rich content, you should get some traffic from the search engines. AdventureGames.net presented with an xxx amount of search engine traffic, it's worth low - mid $xxx
Put 5 months into it and get x,xxx monthly traffic, the domain is worth high $xxx - low $xxxx (if being used by a developer or startup with interest in the genre as a traffic gateway), not so much for either the traffic or the domain, but the combination of both will make the whole deal a lot more appealing = Generic keywords representing a large genre in video gaming + respectable .NET + 249,000 search volume + receiving xxxx traffic = Interest.
By itself, no one will be presenting any real offers on it IMHO.
G'luck
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EDIT: I just noticed that you have a website running, I definitely think it could use some SEO. Depending on your traffic, you could probably get mid $xxx for the name or more.