AGS - Adventure Game Studio [1] came out in the 90ies. Lots of indie-gems to be found, like "5 Days a Stranger" [2]. It's still maintained and used for commercial games.

[1] https://www.adventuregamestudio.co.uk/site/ags/

[2] https://www.adventuregamestudio.co.uk/wiki/5_Days_a_Stranger