A diamond in the rough.
Game play in FastCrawl is exactly that, fast. You control a token on the map that can move from room to room. No need to move individual party members or move space by space or keeping track of how many spaces you can move per turn, etc. When you encounter a monster, you switch to a (up to) 6 vs 6 combat "map". Characters in the front row protect characters in the back row from melee. Each character only has 1 or 2 abilities (depending on weapons/items equipped) they can use in combat and are selected by clicking the left or right mouse button on a target. The character order is based on a modified initiative. It's as simple as that. Did I mention it was fast?
Maps are randomly generated for a time period of your liking (I normally finish short maps in 30-45 minutes, so they're good for a quick run).
There are two problems with this game. From reading the forums, there's seems to be a fairly bad problem with game balance on the harder difficulties. You're more likely to run out of supplies (turns) before you're killed by monsters.
Also, there's no way to save your game. If you choose a long dungeon and you don't have time to finish it, your only option is to minimize it. Hopefully your computer nor the program crash before you're finished. ;) Hopefully those details will change in the future.
In my opinion, it's still worth the $19.95 to buy it online.