Just a few small ideas to polish the game nicely...
1) My first one is to prevent wolvers from being able to burrow through force fields.
2) Restrict Gremlin Menders to only revive one other gremlin and one other gremlin only.
Now for the broken achievements. First of all, I do have these achievements on steam however I know how it has been a frustrating and reoccurring issue for some players, and I believe I have two different simple solutions...
"Walk it off" - Revive a downed member with your only spark of life, while on a single pip of health yourself.
"Minor Miner" - Obtain a single mineral
"Moderate Miner" - Obtain 100 minerals
"Major Miner" - Obtain 500 minerals
"Marvelous Miner" - Obtain 2,500 minerals
"Master Miner" - Obtain 10,000 minerals
OR
Completely change the mineral achievements into forge achievements.
"Facile Forger" - Use a single crystal to forge an item
"Fine Forger" - Use 100 crystals to forge items
"Favourable Forger" - Use 500 crystals to forge items
"Fabulous Forger" - Use 2,500 crystals to forge items
"Fantastic Forger" - Use 10,000 crystals to forge items
Thanks
Change all those achievements and add the forging achievements.
Wolvers/menders don't really bother me.