I finally managed to get some time to play this ToME4 , that i always had on my "toplayoneday" list.
It's the beta 18 apparently,
And i had a lot of fun with the game system, it's very good with those abilities and the character progression between gained levels.
The mouse driven interface is excellent, so well done that in fact you could play ToME4 without even need to hit your keyboard.
After playing the tutorial (very well done in explaining the system), i managed to clear the dungeon near the town playing a human berserker (the regeneration ability is more than usefull), noticed a few stutter (very weird considering it's a turn based game).
I then moved to the nearby Trollmire forest after a stop in town to get the scrying orb that allow me to identify my newly acquired items.
While i was in the dungeon things went smoothly, until a point in which the game started a terrible slowdown for no reason i could see (as it was between 2 turns, where nothing is supposed to happen), the interface was painfully unresponsive, then after a few seconds, it was back to normal smooth, something i noticed in the Trollmire forest, at a lower rate and impact.
Then after a 5 minutes, again a horrible stutter/slowdown, after a few seconds, back to normal etc... etc...
Retried with turning anything off and disabling the saves, but changed nothing, there's some kind of regular stutter from time to time, and in the dungeon it can even worser.
The game seems really excellent with its progression system and excellent interface, but the engine run horribly sometime, that's really strange considering the visual are rather simple, the amount of enemies is not really high and it's turn based.
I noticed a thread about those slowdown/stutter on the ToME4 board, so i really hope this problem will be solved one day if it's widely noticed.