#1: Seems to crash a lot for some reason. But it loads fast, so its mostly just annoying.
#2: Needs some more mechanics. Its not easily usable with the World of Darkness games, for example, as RPG Rollers explosion mechanics dont work for it.
The WoD mechanic is called #-again (10 again, 9 again, 8 again). WoD uses a threshold system, rolling a number of d10 and counting 8+ as successes. On most rolls the 10-again rule applies, so any 10s are counted as successes, and then re-rolled as an extra die for the roll. If you get more 10s, you can get more re-rolls. (Example, 4d10 rolled, 1/4/8/10 - you get 2 successes, you then reroll the 10, getting 9 for a total of 3 successes)
I know theres at least one threshold system where the 10s counted as two successes rather than rerolling them in any way, but I cant recall the game.
#3: The tray cant be set to stay visible for a longer period of time (important if you have to do something the formula cant handle)
#4: It would help if the numbers in the tray could be displayed in numerical order - makes it much easier to see if youve botched in certain systems
---
Very feature-rich overall, and likely perfect for a great many games, but its easier to just use dice for certain popular games, due to the missing mechanics.
Daemon- about RPG Roller, v1.1.7