Online (6v2) social deduction game that will ruin your friendships. 6 crew members, 2 murderous shape-shifting aliens. Trust No One.
We are not affiliated with IsThereAnyDeal.












Enemy On Board is an online multiplayer (6vs2) social deduction game where 2 random players are the Alien imposters and the other 6 players are Crew members. The Crew’s goal is to figure out which 2 among them are Aliens, hunt them down, and kill them - all while repairing the spaceship’s generators to keep communication lines open in an effort to escape space isolation. Aliens sow discord, and wreak havoc in order to destroy the Crew members by whatever means necessary. Last team standing wins.


Enemy On Board is a game of teamwork and trust for the ultimate goal: survival. Aliens and Crew both use built-in voice-chat to communicate, and Aliens even have their own second channel to strategize. Just a piece of advice for you...Aboard the Andromeda, it's best to trust no one.
Space is a messy place - even more so when there are 2 aliens among you, that just killed your friends. Tensions can often rise and you just have to whack someone with a hammer. Instead of voting out the Alien impostors - kill them. Don't just trick people - orchestrate a friendly Saturday-afternoon mauling for them.
Level up your character and progress through the perk-tree to gain that extra edge on your opponents as you compete to be the best. Character abilities and perks all have 3 impact levels. Ascend your character to level up your character ability and roll for upgraded perks.
Enemy On Board is in Alpha via Steam Early Access. We could have kept the game closed or put the alpha behind a paywall and gone F2P later, but we'd rather just get your feedback and build this game WITH you. Updates are released regularly and we plan to operate Enemy on Board for years to come. Our official Discord is the best place to meet friends and share critical feedback with the development team. We sincerely hope to meet you there.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.












Enemy On Board is an online multiplayer (6vs2) social deduction game where 2 random players are the Alien imposters and the other 6 players are Crew members. The Crew’s goal is to figure out which 2 among them are Aliens, hunt them down, and kill them - all while repairing the spaceship’s generators to keep communication lines open in an effort to escape space isolation. Aliens sow discord, and wreak havoc in order to destroy the Crew members by whatever means necessary. Last team standing wins.


Enemy On Board is a game of teamwork and trust for the ultimate goal: survival. Aliens and Crew both use built-in voice-chat to communicate, and Aliens even have their own second channel to strategize. Just a piece of advice for you...Aboard the Andromeda, it's best to trust no one.
Space is a messy place - even more so when there are 2 aliens among you, that just killed your friends. Tensions can often rise and you just have to whack someone with a hammer. Instead of voting out the Alien impostors - kill them. Don't just trick people - orchestrate a friendly Saturday-afternoon mauling for them.
Level up your character and progress through the perk-tree to gain that extra edge on your opponents as you compete to be the best. Character abilities and perks all have 3 impact levels. Ascend your character to level up your character ability and roll for upgraded perks.
Enemy On Board is in Alpha via Steam Early Access. We could have kept the game closed or put the alpha behind a paywall and gone F2P later, but we'd rather just get your feedback and build this game WITH you. Updates are released regularly and we plan to operate Enemy on Board for years to come. Our official Discord is the best place to meet friends and share critical feedback with the development team. We sincerely hope to meet you there.
Online (6v2) social deduction game that will ruin your friendships. 6 crew members, 2 murderous shape-shifting aliens. Trust No One.
We are not affiliated with IsThereAnyDeal.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.