The Big Game
Death is in the cards on Deep Space Nine.

The Big Game is a Pocket DS9 novel – #4 in the numbered series – written by Sandy Schofield. Published by Pocket Books, it was first released in .

Summary 
From the book jacket
When Quark holds a poker tournament on Deep Space Nine someone from almost every sentient race – Klingons, Cardassians, Romulans, Vulcans, Ferengi – shows up for what is sure to be the highest-stakes game of all time. But when one player is killed, the stakes get higher than even these big-money players had counted on. 

With the station rocked by subspace waves that threaten its destruction, Commander Sisko and Security Chief Odo must hunt down the killer in time to save the players, a killer who has information that can save those on board Deep Space Nine from the invisible enemy they do not even know they face, a killer who holds all the cards.

Background information 
 "Sandy Schofield" is a pseudonym for Kristine Kathryn Rusch and Dean Wesley Smith.
The Big Game features four  guest characters, Lursa, B'Etor, Rasmussen and Etana Jol.

Characters

Regular and recurring characters 
Benjamin Sisko  Starfleet commander, the CO of Deep Space 9.
Kira Nerys  Bajoran Militia major, liaison and XO of DS9.
Odo
Quark
Julian Bashir
Jadzia Dax
Miles O'Brien
Jake Sisko
Nog
Rom
Elim Garak
Zek
Keiko O'Brien
Maihar'du
Morn

Others 
B'Etor
Lursa
George Primmin
Danar
Krax
Berlingoff Rasmussen
Etana

Mentioned 
William T. Riker Riker was invited to participate in the tournament, but had to send his regrets due to, according to Quark, "saving a planet or some such".
Jennifer Sisko
Gral
Geordi La Forge

References 
Deep Space 9; poker

External link 
 

cs:The Big Game
de:Das große Spiel
Big Game, The