This is great, I'm using this and the gallery one in my game, but when I add my achievements, it changes the order in the game itself. Even if I change the order in my script, something is changing the order back again. I'm not seeing anything that changes the order anyway in the code, any advice? 

Are you talking about the order that the achievements are shown on the screen bobcachievements? They should be shown in the order they were defined in BOBCACHIEVEMENT_LIST if you're running Ren'Py 8.1, but if they're not, there's a possibility I misunderstood something about dict ordering.

If you're sure you're on Ren'Py 8.1, try changing line 57 of sbobcachievements.rpy from:

for achievement_id in BOBCACHIEVEMENTS_MAP:

to these two lines (with appropriate indentation before the second line):

for aid in BOBCACHIEVEMENT_LIST:
    $ achievement_id = aid[0]