[srpeck]

I wanted to test 1 and 4 out, so I wrote an MMO in q/kdb+: https://github.com/srpeck/kchess (live server is down, but you can see some of recorded action here: https://github.com/srpeck/kchess/blob/gh-pages/docs/kchessdo...). Some of my design decisions: https://news.ycombinator.com/item?id=10924316

I had previously built similar games using other technologies, but found developing in q to be far faster, even given the more primitive debugging capabilities.

I understand that this is a relatively small example, but building it was enough to convince me the APL/k/q approach is useful beyond its supposed niche.