NES/Famicom

Alien Syndrome

Alien Syndrome is a scrolling shooter arcade conversion. Your job is to run around and rescue all the captives and make it to the escape hatch before the time bomb explodes. Then face the mother alien at the end of the level. You can play as a single player or two people, taking turns. (Player 2 starts the game after Player 1 dies and vice versa.)

Genre: Action
Year: 1988
Developer: SEGA Enterprises Ltd.
Publisher: Tengen Inc.
Players: 2

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P2P Netplay available on compatible cores

Achievements

17 achievements · 205 total points

Watch Your Step Accumulate 5 lives
10 pts
Alien Slayer Get a score of 50,000
5 pts
Alien Killer Get a score of 100,000
10 pts
Alien Demolisher Get a score of 200,000
25 pts
Just The Beginning Save all prisoners on stage 1 and get to the exit
5 pts
Hugger Beat 1st boss
5 pts
Warming Up Save all prisoners on stage 2 and get to the exit
5 pts
Asophy Beat 2nd boss
5 pts
Getting Better Save all prisoners on stage 3 and get to the exit
10 pts
Tacady Beat 3rd boss
10 pts
That Was Tough Save all prisoners on stage 4 and get to the exit
10 pts
Halpha Beat 4th boss
10 pts
How In The World?! Save all prisoners on stage 5 and get to the exit
10 pts
Teetsie Beat 5th boss
10 pts
Glad That's Over Save all prisoners on stage 6 and get to the exit
25 pts
Minemor Beat 6th boss
25 pts
King Core Beat the game
25 pts

Alien Syndrome leaderboard

Who scored the most on this game's achievements.

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Alien Syndrome frequently asked questions

How do I play Alien Syndrome online with a friend?

Alien Syndrome (NES/Famicom) can be played online with friends using Etera's P2P netplay. Create a room in the launcher and invite your friend, who joins through the invite. Step by step:

Download the Etera launcher for Windows or Linux and create your account.
Ask your friend to do the same and add them to your friends list.
Pick the game in the library and create a netplay room.
Invite your friend: they accept the invite and join the room.
The launcher keeps dependencies on the same version for both players, avoiding desync.

How do I play Alien Syndrome on PC?

Download the Etera launcher (Windows or Linux), find Alien Syndrome in the NES/Famicom library and click to download. The launcher handles the emulator and setup for you.

Does Alien Syndrome netplay lag?

Etera uses a direct P2P connection between players, which usually means low latency. Results depend on each player's internet quality.

Does Alien Syndrome have achievements?

Yes, Alien Syndrome has 17 achievements worth 205 points. Achievements are counted and saved to your history and the leaderboard for subscribers and during the trial period.

Can I play Alien Syndrome for free?

Yes. Every account gets a 5-day trial with premium features. After that, the free plan allows 3 new games per day and 1 netplay session per day. Premium raises those limits.

Play Alien Syndrome on Etera

Download the launcher for Windows or Linux, find this game in the library and play solo or with friends.