I will trade my games for:
- Baldur's Gate
- Baldur's Gate 2
- Planescape: Torment
- The Witcher 3

I am also open to suggestions for crpg's and any classic game.

I will trade you the following based on tier (tier is a combination of price, play time, and value. It is subjective, but it can be haggled.):

STEAM KEYS
Tier 1:
- Batman: AA GOTY
- Batman: AC GOTY
- FEAR
- Guacamelee! Gold Edition

Tier 2:
- FEAR 2
- FEAR 3
- Giana SistersL Twisted Dreams
- The Swapper
- Monaco: What's Yours Is Mine
- Beatbuddy: Tale of the Guardians

Tier 3:
- Neighbors From Hell Compilation
- Starseed Pilgrim

DLC:
- Batman: AO DLC (DLC ONLY)
- Gotham City Imposters: Professional Kit
- The Lord of the Rings Online: Steely Dawn Starter Pack

Not to argue with your post, but they are all bundle titles.

Not trying to be a forum prude, but:

This is the trading thread here:
http://www.gog.com/forum/general/gogs_general_trading_thread

You might have better luck there and specify the platform (GOG, Steam, GamersGate, Desura etc.) of your games.

EDIT: ..and keep in mind, that GOG games are considered much more valuable than games from other platforms and especially bundled games. My guess is, that nobody is willing to trade for Witcher 3, no matter how much bundled games you're offering.

No offence, but there's a dedicated thread for trading - "GOG's (General) Trading Thread".

Perhaps I created my list in the wrong thread, but everyone else seems to be linking their personal posts. Also, what games haven't been in bundles yet and so what if they have? Reply if you're interested only.

Yes, tier 3 is the lowest.

Have fun getting witcher 3 for that.