Mothership - The Haunting of Ypsilon 14

Mothership - The Haunting of Ypsilon 14

Mothership on Roll20, Discord

Price per player-session

You will be charged when a session starts



  • Duration: 3 to 5 hours

  • Number of players: 2 to 6 players

  • Experience required: Beginner

Price per player-session

About the adventure

A great introductory adventure for this tense, suspenseful horror sci-fi system. During a routine cargo job on a remote asteroid mining base you learn that one of the workers has disappeared. No blood, no body, no record of the airlock opening. Just gone. And that’s not the only unexplainable thing that’s been happening at Ypsilon 14… What is the alien material at the heart of this asteroid? What do the weird events around the base have to do with it? Who, if anyone, can be trusted? And can you make it out alive before you also disappear? Mothership is a sci-fi horror roleplaying game where you and your crew try to survive in the most inhospitable environment in the universe: outer space! You'll excavate dangerous derelict spacecraft, explore strange unknown worlds, exterminate hostile alien life, and examine the horrors that encroach upon your every move.

DMs Guild Writer
Women/Femme Identifying
Game Designer

2 years on StartPlaying

Additional Details

How to prepare

Mic and headphones essential, webcam beneficial. A basic understanding of the rules is also beneficial, but we'll go over the core mechanics at the top of the session, in character creation if that takes place, or as a general intro otherwise. A Roll20 account and the ability to run Discord on one platform or another is obviously essential!

What I provide

The official Roll20 module, complete with Mothership compendium for quick rules lookup. A good working knowledge of the system and one previous session of this module under my belt.

Gameplay details

Roll20's native RPG safety tools addon is used in this game. Content warnings include - body horror, gore, isolation, heavy drug use, alien monsters.

Content warnings


Safety tools used


How will character creation work

Players' choice - I have pregens I can provide or alternatively I'm happy to guide players through character creation at the start of the session. Roll20 has very easy to read character sheets and a built in charactermancer for the system, making setup very easy.

Players can expect

  • Combat/Tactics: Medium
  • Roleplay: Medium
  • Puzzles: Medium
  • Experience Level: Beginner

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