Besides the Fallouts, can anyone recommend some similar titles available on GOG? By similar I mean an isometric view, rpg, turn-based game.

I've heard good things about BG 1+2, ToEE, and Icewind Dale, but I'm afraid they are like Neverwinter Nights 2 which I played back in the day and hated - it seemed more like a chore than a game. I'm aware these aren't turn-based, but after reading a bit it seems you can pause and choose your actions, so I guess that sounds ok.

I already bought Planescape Torment but haven't tried it out yet.

Would you recommend these games?

Any others like Fallout or Arcanum?

I would suggest you take a look at this discussion for games similar to Temple of Elemental Evil, plenty of games listed with isometric views and turn based combat in
mind.
http://www.gog.com/en/forum/temple_of_elemental_evil/games_similar_to_toee

ToEE itself is a decent punt, I didn't find it all that engaging though myself. Icewind Dale is a pretty good game, would recommend giving it a go. I have a hard time likening them to Arcanum though in honesty, as I played through that in real-time mode.

Turn-based isometric RPGs, eh? Not too many of those on GOG, although I hear good things about Darklands, which was added fairly recently. The Infinity Engine games (Baldur's Gate, etc.) you already know about. The Realms of Arkania games have an isometric battle system but they might be first-person at other other times... they are supposed to be good but I haven't gotten to them myself yet. Then of course there is the Ultima series, which I also haven't played. And Musashi1596 already mentioned Temple of Elemental Evil, which is a tactical RPG with a really in-depth combat system based on D&D rules.

If you can live with a real-time game, I hear that Divine Divinity is actually really good despite having Diablo-style gameplay... apparently it's a full-on RPG with a huge world and quests and plotlines and everything, rather than just being about killing monsters for loot like many such games are.

As for games that are NOT on GOG, there are some indie games you might be interested in. Spiderweb Software make a lot of isometric turn-based RPGs, although they have some very basic graphics. Their most recent is called Avadon, but they've done two other major series with several games each, Geneforge and Avernum. Avernum is a standard "band of heroes" RPG series but has a really interesting setting, while the Geneforge series is more focused on difficult moral choices and consequences. Spiderweb's games all have really good writing, but it's definitely in a certain style so if you play more than one of their games they might start to feel pretty similar. Their games also all have big, free demos so you can try before you buy.

Another indie series to check out is the Eschalon series... it's a trilogy, with the first two games released and the third is in development. I've been meaning to check them out myself but haven't had time yet. Single-character turn-based isometric RPGs with some pretty nice visuals. I think they have demos available too.

Lots of titles there that I think I should take a look at myself, thanks Waltorious.

Oh, I would also mention Lionheart: Legacy of the Crusader, as it used the S.P.E.C.I.A.L system seen in Fallout.

Divine Divinity is quite good, in my opinion. The end is a bit weak, but the whole plot line is very fun and though the combat and mechanics are very much "Diablo-esque" it is a really good RPG (with some rather ridiculous characters).

But wasn't it real-time? I've heard the first half of that game is actually really interesting but then the second half was rushed and is no good. I actually grabbed it on GOG during a sale but haven't got to it yet (you may have noticed that I have a lot of games I haven't got to yet!).

Baldur's Gate 1 is closes to this game, with freestyle exploration, deep storyline, multitude of character development paths, dialogue that actually matters, choices which affect the game, isometric perspective, and incredible detail in every facet of the game.

The combat system is different yes, but I figured the S.P.E.C.I.A.L system might be an appeal nonetheless. I haven't got that far into it myself yet, I have many, many unplayed games that also demand my attention. GOG sales are crazy.

As for the second half, to be honest, I felt the same about Arcanum (Well, the last quarter perhaps). Definitely felt weaker and rushed towards the end, enjoyable nonetheless.

Wasteland 2 will fit exactly into what you're looking for when it comes out. Turn-based, isometric view, RPG, party-based, etc. Except of course it's not on GOG because it's not out yet.

Other than Baldur's Gate, I recommend the Ultima and Jagged Alliance games. Note though that technically Ultima I-VII-2 are not isometric. But then again, neither was Fallout...

The only other true isometric, turn-based RPG I can think of is Super Mario RPG, but's probably not the sort of thing you're looking for...

Fallout 1 and 2 are isometric.

What does the very first sentence of this topic say?

I believe this was in reference to doady's comment, which implied that Fallout was not isometric.

Of course, it's obvious looking back at it now. It's been a long day.

My sincere apologies, berrrnard

At any rate, can't say I've heard of it being referred to as trimetric before.