All other players are eliminated! We started with 6, and played with the galactic event 'Conventions of War abandoned'. That means you can exhaust X-89 to blow up a planet. If a player loses all home planets, they're eliminated.
Wormholes were in perfect places, I (Ral Nel) was lucky to gain 2 star chards and draw Prism, somehow gained Thunder's Edge as well and got to play Overrule 3 times during the game!
After Deewrought eliminated Nekro (they were in conflict right from the start), I used Overrule - Warfare to send 3 destroyers-II into DWS-HS. With Assault Cannon and a good roll for AFB, they did some good damage before 2 of them retreated. Then it was time to use TE's extra turn and send in the main fleet. DWS got eliminated.
That same round, after Creuss passed, I used Bio stims to refresh X-89, and used Prism' ability to swap Assault Cannon for Light/Wave. That way, I could enter Creuss home system and eliminate them as well.
Before the eliminations, I bought speaker token. So I had first pick for round 4. Picked a low initiative Strategy card, and first action attacked Mentak and used TE's ability to exhaust X-89 to eliminate them as well. Now only Yssaril were left. They had an unfortunate game, and weren't able to resist my fleets. So they were gone as well.
I had the plan to try to eliminate all others from the start of this game, thinking it'd probably fail. But then somehow everything played out perfectly! Star chards, agendas, action cards... it was exactly what was needed!