V_K
Arcane
Yeah, Vogel's games are all a bit on the wordy side, but also the quality of writing is rather different between different series. Avernum and Geneforge are pretty good and not too overwritten. Avadon on the other hand....The only thing I dislike about the Vogel games (the couple I tried) is that they have a lot to read
Speaking of Generforge, the first game in the series (which got a remake recently) also fits the bill quite well, being very open and allowing you to give a middle finger to all the factions and just explore the island and its mysterious past. The rest of the series, unfortunately, is more plot-heavy.