Here is the full list of all 100 Gremlins, Inc. achievements.
Build "The Recycler" while playing as the Pauper.
Build "The Automated Accountant" while playing as the Banker.
Build "The Astral Elevator" while playing as the Politician.
Build "The Accelerator" while playing as the Merchant.
The devil didn't get much, but who cares?
Play 4 cards in one turn (cards used for movement do not count).
Win a session playing as The Prosecutor.
Add 10 items to your collection.
Win in a multiplayer session against 5 human players.
Have $3.000 (or more).
Rob the Bank while playing as the Thief.
Achieve jail rank "The Don".
In the course of one session, send to your opponents 6 Misfortunes (by playing action cards).
Win a session playing as The Politician.
I'm not a tyrant, I'm just being fair.
While playing a session for score, win with 6 score more than is necessary for the victory.
Playing with at least 3 opponents, become the only player not currently in the Jail.
Win a session playing as The Engineer.
Play 10 sessions.
Win a session playing as The Thief.
Win a session playing as The Collector.
Have 6 permanent cards active at the same time.
Activate "The Destroyer".
Win 6 multiplayer sessions in a row.
Win a session playing as The Gambler.
Win a Chaos Quest session.
Beauty, as you know, requires sacrifice... Preferably a sacrifice made by your competitors.
Play one of the Chaos Cards.
In the course of one session, have your opponent(s) arrested through Player Conflict at least 10 times.
Run, gremlin, run!
Play 3 cards in one turn (cards used for movement do not count).
Win a session playing as The Manager.
Send an opponent to jail through Player Conflict by paying no more than $1.
Win 3 multiplayer sessions in a row.
Raise your income to $100 or higher.
Win a session playing as The Pauper.
In the course of one session, visit every location in the game.
Send an opponent to the Jail by discovering a criminal card on their hand.
Win a session playing as The Banker.
Win a team session.
Win 1 multiplayer session.
Rest in the Astral Plane.
Win the Elections.
Send a Misfortune to another player by paying insurance on the Risk spot.
Join a session by accepting an invitation from a friend.
Win a session for 20 score in 30 rounds or less.
Play 5 cards in one turn (cards used for movement do not count).
Play 6 cards in one turn (cards used for movement do not count).
Accumulate 33 votes or more.
This gamble wasn't easy, but luckily it paid off!
Light up 3 lamps in the challenge "Just Business".
Light up 3 lamps in the challenge "An Engine of Progress".
Light up 3 lamps in the challenge "Gold Rush".
Light up 3 lamps in the challenge "Gremlined!".
Play 100 sessions.
Participate in a tournament.
In the course of one session, earn $1.000 or more from taking bribes.
In the course of one session, play 9 cards in the Inferno.
Swap places with a player who is 1-2 spots away from reaching the Astral Plane.
Play 6 cards in the Astral Plane during one session.
It's quite possible that treasureseeking may become a new kind of gremlin sport.
Win a session with 66 malice or more.
Light up 3 lamps in the challenge "A Training Session".
Light up 3 lamps in the challenge "Respecting Unexpected Inspections".
Oftentimes, one must keep a lot of things in secret in order for one's honesty to become fully appreciated.
Qualify for the League of Politicians.
Qualify for the League of Deputies.
Qualify for the League of Governors.
Qualify for the League of Oligarchs.
"A passion for work is a rather rare mental disorder" (from The Gremlin Dictionary).
Win a session while having zero malice.
Win the Auction by paying no more than $70.
Light up 3 lamps in the challenge "A Box of Secrets"
Win a session playing as The Merchant.
Win a session playing as The Damned.
Win a session playing as The Secret Agent.
Build "The Automated Helper" while playing as the Manager.
Build "Perpetuum Mobile" while playing as the Engineer.
Build "The Armageddon Clock" while playing as the Damned.
Have both "Lucky Dice" and "One-armed Bandit" cards active while playing as the Gambler.
Build "An Automated Bureaucrat" while playing as the Prosecutor.
Build "The Treasureseeker" while playing as the Collector.
Build "A Secret Project" while playing as the Secret Agent.
Light up 3 lamps in the challenge "The Mad Clockmaker".
Light up 3 lamps in the challenge "For the Good of the People".
Money, money, money!
Light up 3 lamps in the challenge "A Secret Assignment".
Destroy 6 or more active permanent cards of other players in a single session.
Get recommended by at least 50 other players.
Play at least 10 criminal cards in one session.
Earn 100 score points or more in one session.
Have a total game time of no less than 256 hours on any of the servers.
Participate (as a player) in a session attended by 3 or more spectators.
Participate (as a player) in a session attended by 9 or more spectators.
As a spectator, watch 10 sessions until the end.
As a spectator, watch 30 sessions until the end.
The first rule of the secret achievement is: do not talk about the secret achievement.
Create an item using a blueprint.
Convert an in-game item into charges.
Play in a session with a mod of the game (available via Steam Workshop).