somewhere in the heavens...they are waiting

As chief security officer aboard the colony ship Marathon, Rainbow Dash's primary job is to ensure the safety of all UESC military assets, including the A.I.'s Twilight, Pinkie, and Trixie. Additionally, it's expected that she put some effort towards keeping the crew and colonists alive as well.

Well, 1/3 and ~2000?/25200 isn't too bad... right?

This is a crossover with Marathon by Bungie.

Fluttershy loves being able to help her friends. The problem is that there usually isn't much she can do for them that somepony else couldn't do better. One thing she is good at, however, is listening. Unfortunately, her friends discover this. Now she is beset on all sides (one or two can count as plural right?) by ponies desiring social advice. Will she be able to help them all without completely exhausting herself? (Yes.) Will she be happy about it? (Probably... Where's the conflict in this story again?)

And then Fluttershy was a therapist.

(This is pretty much a sequel to Ursae Majoris: Eternal Knight. Parts of this story will seem bizarre without context, but I suppose it might still be possible to enjoy it on its own.)

Night's eternal rule threatens Equestria. Six heroes stand opposed.

A lonely bard. A troubled knight. A naive mage. A cynical scholar. A reckless rogue. A jaded sentry.

A tale of trust and betrayal; of blood and tears; of love and loss.

Trixie wanted to be a hero to Equestria, to face mighty foes and become an adventurer. What happens when her dreams come true?

This is the saga of Ursae Majoris.

When Twilight, Rainbow Dash, and Fluttershy activate a strange artifact, they find themselves trapped in a game that will toy with their emotions and push them to their mental limits.

Tagged dark for creepiness and horror elements, but there won't be anything gory.