Cook 10 canned food.

Make 5 bandages.

Craft 5 calf wraps.

Drink 10 drinks.

Eat 10 cooked canned foods.

Take 10 iodine tablets.

Scan 30 drinks or cans with the geiger counter.

Upgrade the Geiger counter to level 2.

Upgrade the gas mask to level 4.

Upgrade the flashlight to level 4.

Improve your stamina to level 2.

Improve your food intake to level 2.

Improve the use of bandages to level 2.

Complete all upgrades to the highest level.

Open a lock with a lock pick.

Pick 30 locks on boxes or doors.

Open a safe.

Fix a schematic.

Hack a server.

Crack a password.

Build a campfire.

Build a place to sleep.

Survive the first area.

Complete the game.