What is the most similar game to Fallout 2?

Answer 1

Games Similar to Fallout 2Fallout 3 and Bioshock are both similar to Fallout 2.

Fallout 3 and Bioshock are not similar, in any way, to Fallout 2. Similar games include Temple of Elemental Evil (especially), as well as Arcanum and Planescape Torment - less RPG, but similar structure technically, and mechanically, being Silent Storm, the Jagged Edge series, Odium/Gorky 17, Abomination, 7.62mm, Freedom Fighters, Robin Hood: The LEgend of Sherwood, et. al (though these being more Real-Time Tactics, without the rpg elements of Fallout2).

Answer 2

Games Similar to FalloutIn terms of open non-linear gameplay I'd say Elder Scrolls, Saints Row, Fable 2, Two worlds (don't play it!) and WoW

Games that have the same interactive First person setup are Deus Ex series, Half-life, Breakdown or Omnicron: The Nomad Soul.

_______________________________________________________________

That's assuming you're thinking of Fallout 3 - However, since you've said "Fallout", I think it's pertinent to address the question in regard to the original game - to which, ultimately there's nothing really "like" Fallout, but there are many games, that have similar mechanics and game play elements, though they tend to either be RPG-founded, or Tactical-founded. FOR INSTANCE:

Some of the RPG games that have similar elements would be- Arcanum, Lionheart, PLanescape, Baldur's Gate series, NWN, Temple of Elemental Evil, Pool of Radiance et. al.

Some of the Tactical games that have similar elements would be - Jagged Alliance series, Syndicate, Metalheart, Desert Law, Shadow Vault, Cold Zero, X-Com/UFO series, et. al.

The most related of those mentioned however, to the original Fallout, would be Metalheart, Desert Law, and Shadow Vault, though you can definitely include The Fall: Last Days of Gaia (probably the most Fallout 1/2 game there is), Chicago 1930, and Omega Syndrome