For the upgrades, you can buy them one by one ( Example. If foods, you have to buy them one by one [ Price is 2910 Gems ] ), If you want to save up and buy them all at once... the price is still the same, you'll have to pay [ 2910 Gems ]... Thumbs up to keep this comment alive!
I thought saving all gems to upgrade one whole stat saves much more gems, but I have like 700 gems and they only allow me to make the 6th Upgrade of Food.... So that means YOU NO NEED TO SAVE UP GEMS!
Room 1 :
Look around
Look at bed
Take key
Use key on padlock
Get in box
Room 2 :
Look around
Read note
1904 (this number is the date of birth of the man referenced in the note)
Room 3 :
Look around
Take parts
Build computer
Hit power button
Room : 4
Look around (start every room by looking around!)
Look at keypad
1904
Room : 5
Look around
Keep looking around. OVER. AND. OVER. This also takes a while.
38012
Room : 6
Look around
Room 7 :
Look around
Look at blood
Anger
Room : 8
Look around
Leave room
Ending :
Earn Badge
 "Stonepunk"){kind=icon}
 "Desert Moon"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "Don't Shit Your Pants"){kind=icon}
 "You Find Yourself In A Room"){kind=icon}
 "Escape #4: The Bathroom"){kind=icon}