This a MetalStorm: Online plane.
It is a Sukhoi SU-27, (NATO reporting: Flanker) a fourth generation Soviet fighter combined with the Mikoyan-i-Gurevich MiG-29, (NATO reporting: Fulcrum) another fourth generation Soviet fighter plane. The MiG-29 was designed in response to the F-15 Eagle and F-16 Fighting Falcon. The SU-27 was built in response to the F-14 Tomcat and also the F-15 Eagle
It is an agility class plane, pricing at 65 gold. Pilot "Copperhead" flies a similar aircraft with golden details named "Iron Fang"
In MetalStorm: Aces the name of SU-27 of the game is "Steel Fang"