EF2000 is a combat flight simulator video game developed by Digital Image Design (DID) and published by Ocean Software in 1995 for the PC DOS.

In 1997, a compilation titled EF2000 V2.0 was released in North America that included the original DOS versions of EF2000 and TACTCOM and also the Windows exclusive Super EF2000.

MFDs allow player to attack both flying and grounded targets with a range of weapons, including precision-guided munitions, missiles and unguided bombs.

On release, a Next Generation critic called the game "one of the best flight sims on the market", applauding the realistically texture-mapped graphics, easy-to-learn interface, intelligently responsive AI, and multiplayer networking.

The editors praised it for combining "a high level of realism with fun", and noted its "ground-breaking terrain and aircraft graphics".

"[5] That same year, Next Generation ranked it as the 42nd top game of all time for being "simply the most immersive combat flight sim on the market.

[11] In 1998, PC Gamer declared EF2000 V2.0 the 31st-best computer game ever released, and the editors called it "a believable simulation of a very sexy next-century fighter".