3 - Yes you can. 4 - It was empty, loot pops out of chests. There is a toggle to show white loot (trash mostly except for later levels when items can be 4-5 linked) or not to show it5 - Once you click on the gem it will level. Now this is a slight warning. Some times you do not want to level up your gem all the way. For instance when I do my lightning build archer i never level up my lightning gem past 4 or 5 (forget which) because it eats up too much mana. So keep several gems on hand and try them out to see what fits your build best.Wow this looks great! On my 7th try it downloaded and appears to be running smoothly. Couple of very quick questions1) how do I save my game?2) I can see a world map but I can't find a local map. Is there one?3) can I hot key mana and health potions?4) I found my first chest and opened it but I don't know how to look inside. Was it just empty?5) I got a message saying I can now level up my one skill gem I have. By when I click on the gem itself I can't find the step to level it. Does it level itself?