Simulation(‘SIM’) is a type of Internet role-playing through live-chat, email, or more recently NOVA.

The Fifth Fleet is a free online group dedicated to this form of fun roleplay & collaborative storytelling. See our SIM Guide and consider joining a “SIM”!

All the simulations within The Fifth Fleet take place, in the same interconnected universe, across multiple storylines. These storylines reflect the ‘prime’ canon timeline shown in STAR TREK Enterprise, The Original Series, Discovery, The Next Generation, Deep Space Nine, Voyager, Picard and the TMP and TNG Movie Eras. The Fifth Fleet currently runs 4 storylines, with each SIM operating within one. To learn more about each storyline, please click the banner below.


Before the Federation, there was the ‘Coalition of Planets’. In 2158, Earth Starfleet is taking heavy losses during the Earth – Romulan War. Join the brave crew of the NX07 Intrepid as they turn the tide against the Romulans.
As we enter 2384, the first Bajoran to be elected to the post of Federation President, Iden Morr, has been assassinated. As the Federation mourns its loss, join Star Trek: Homefront & USS Ulysses as they deal with the galactic ramifications!
The Confederacy between the Klingons, Romulans and Federation has collapsed. The Fifth Fleet stands at the point where all 3 galactic powers meet. Join Starbase Versailles, the IXL and USS Alliance as they grapple to keep the peace while the Federation begins to explore the Galaxy again.
It’s 2420, and the frontier has never looked so far away.
We lost the war.
After six blood-soaked years, the surviving shreds of the United Federation of Planets surrendered to the Dominion. Now the USS Minerva and a caravan of Federation refugees search for a new home.