Hardcore play

1. Complete quests from NPCs one at a time. Take on only one task at a time, and the next one only after completing the previous one.
2. Expand the stash in the bunker using only the rewards obtained from NPCs. Of course, after reaching the maximum level of a stash using this method, you can start expanding it on your own using the materials you have obtained.
3. Always carry a pistol with you. As befits a good slatker, you cannot be equipped too well. Two long weapons is definitely overkill. You adapt too easily to any situation.
4. Don't buy guns. You can only use those obtained from quest rewards, defeated enemies, and found on the map in caches or air drops.
5. Don't buy weapon upgrades. Same principle as with guns. of course, excluding those upgrades that cannot be obtained in any other way.
6. Don't buy medicine. Items found during gameplay must suffice.
7. No more treatment with the Doctor and paying the Bartender to refill hunger and thirst

If the game is too simple for you and you have good ideas on how to make it more difficult, I'm waiting for advice