The damage formula and action(s) are nowhere near final, but we finally have a working interface with reasonable opponent generation. Still quite a bit to go before v0.23, but we've made it past the hard part.
Combat is currently only triggered by the stalker encounter, which has a <1% proc rate and only appears on the 'look for change' passage. This extremely low encounter chance is a very good thing for testing...
No, seriously, it is.
If you don't want the encounter, play normally. If you DO want the encounter-- frequently-- turn on LUCK MODE and you'll get the combat about 90% of the time!