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