I recently started playing the Mercenary trilogy (Danmocles...). I thought the old vector textureless 3D will be ugly, but it actually looks quite good and it's incredible how realistic looking worlds were they able to create with just vectors (and with a bit of imagination on your side

). Haven't played it much yet, but it really has some charm. It's quite different than the usual Amiga 2D affairs plus it's fast unlike most old 3D games.