Ah yeah I wish you a lot of fun then. I just loved the atmosphere these games created. Similar to the metro series. You should be able to find a few good mods on moddb for graphics, bugfixes and just quality of live mods if you want to try it. Though I would recommend not using many gameplay mods if you haven’t played the series before

The gamma modpack. Just finished the storyline. Quite good. True Stalker is next :D

Trespassing the chernobyl exclusion zone. Maybe murder and/or spying.