I'm consolidating all of my games from GOG and various bundles. This is a monumental task that's sucking up hours. My current system of file folders works well for storage and retrieval, but is clunky for searching and metadata.

Is there a standalone database program that I can store game info in? Something like Calibre or iTunes, but for video games.

Requirements:
* Store Agnostic
* Not a website. Needs to be stored on my games drive
* Tracks relevant material like manuals, soundtracks, art, etc
* Would be helpful if it could download game info a la iTunes
* Needs to track multiple links / keys for the same game
* Would be super nice if it could handle versioning for games to track which installer is the most up to date. Probably impossible though.

...and iron your shirts? Sounds like an iPhone. ^^

Sorry, couldn't resist. I don't think there is such a program.

Excel + neat macros :)

Not archiving game info atm, but have looked at some in the past. Never got around to checking them out or starting. Here's the ones I bookmarked:
http://www.gog.com/forum/general/is_there_any_good_game_collecting_database_software/page1
http://www.datacrow.net/
http://vgcollect.com/

A game cataloguing software is actually something I too search for for quite some time already. But I haven't found one yet that fully fits my needs.

Started with Datacrow which is probably the most flexible for configuring custom data entries, but is quite clunky as far as the interface goes and performance-wise subpar (Java-based).

Recently I started using the Game Version of Collectorz. Better interface, but a little worse in regards to cataloguing data not present in the standard mask. Also I am still missing better and more intuitive tools for analyzing and accessing catalogued data (tag clouds, filtering, customizable views, etc.)

And then I would really like to test Delicious Library because that one looks really interesting, but sadly it is only for OS X.

Make a database in Microsoft Access. If you know how to use Access, you can make a pretty slick interface.

Here's a free open source cataloger that may fit your criteria, as it is highly customizable:

http://www.sisimizi.org/

It is based on the open source ANT movie cataloger, which is also highly customizable. Both of them feature scripting support, so you can automatically pull information from internet sources.

I started working on a project to do this very thing about 8 months ago but put it on hold for a while for higher priorities, but I plan on coming back to it sometime in the future. It is web based however as I figured the time spent developing it myself might as well be put online to monetize with affiliate links/ads or whatnot. The project is not currently in a usable/useful state, just some proof of concept code and bits and pieces. No idea if I'll ever actually complete it for certain, but the possibility is there and I figured lots of others would like such a thing also.

If you run into anything else out there that exists that does this sort of thing please do share it with us though, any kind of database like that would be great to have online or offline.

I use Launchbox
It has a searchable filter system. And you can link installers or run exes in the right click menu. It natively supports emulators, and is a very powerful sort and collection tool. Here is a sample of my collection.

Thanks for the replies, everyone!

Going to try Sisimizi and LaunchBox first. They seem closest to what's needed.

Really don't like Java, and all the other options seem to be web-based, so after that it may be time to roll my own. It would be a fun programming project, if nothing else.

EDT: LaunchBox seems to be missing some key features. Particularly, the only store integration is for Steam. Also, there isn't an obvious way to track multiple copies of a game for different operating systems or stores. There isn't even a way to add custom fields so I could add a Key/Link field, a DLC field, etc. Seems great for what it does, but not flexible enough, and it's closed source so I can't customize it.

Sisimizi...rolling my own client might be as much work as modifying it. Need to check out the source code. Also, it requires a Delphi 7 compiler and many addons, some of which aren't available online any more. So honestly that looks right out too - I'm not going to waste hours messing around with compilers when I can just start cranking something out in Python or Mono.

On the surface, LaunchBox is closer to what I want. But the gaps are large enough that a customizable system is better. Neither it nor Sisimizi are easily customizable. Time to roll up my sleeves and start coding.

First step is checking out OS GOG downloaders. If they can be made to work with bundle pages, I'm halfway there on the downloading end.