I develop high frequency stock and derivative trading applications. Games is just a side/hobby project now. I used to make games full time but, unfortunatly the pay sucks.

I keep getting callls from recruiters and games companies but, I don't think there is anything that would convince me that it is worthwhile going back to working for a big games company ever again.

I don't do games for a living, mainly OCR and document recognition software. E.g. a company gets x-million invoices each year, we put them in their ERP system.

We do have many clients in healthcare so you do get an occasional glimpse at how they work. Once I got the chance to take a closer look at on of the hospitals automated picking and packaging systems (basically a room with robots that packages the medication for the stations and other customers).

Other game unrelated stuff I'm interested in at the moment: node.js, cryptography. And many things I have once started but never had enough time and/or motivation.

I'm interested in compiler construction. I hand-rolled a lexer just for fun the other night and will probably hand-roll a parser to go with it at some point when I'm not preoccupied with something else.

Same interest here too. I've actually been able to use that knowledge in my day job too, developing a scripting language and vm for an automation application we used to use for several years.

I don't know if it counts as a tool for my game or not, but I created a tool to help writers by recording character names and letting them be tagged and filtered and searched.

GameDev.net kindly hosts it, and you can download it for free. I made it for my game's plot, but I also made it for my siblings working on non-game projects (one a manga and one a book).

I also made a tiling preview tool, more for game art - so I guess that's game related. I have designs for a Microsoft Word like application for Bible studies, but I don't currently have the time to work on it (it's a large project), so for now it's a paper design only.