Subnautica (Mac/PC)- This sandbox game is pretty cool, compelling, and pretty too! Crash land on an alien water planet and survive in the Ocean. Most fun when allowing Survival Mode. Crafting is fairly simple. It may seem tedious at first collecting fish to eat and finding very small salt deposits along with plentiful coral samples to make bleach, do desalinate your drinking water. This is an early access game. As far as I know, there is currently no multiplayer if you are wondering about the two divers shown below. Normally $19, was on sale for $15 a week or so ago. Tips: 1. Go grab the slower fish, bring them back and cook them in the fabricator. You can grab multiple fish, and they go into your inventory. After they are cooked, they go back into your inventory and must be eaten fairly soon or they rot. Don't eat rotten fish. Later in the game when salt becomes more plentiful, you can dry your fish (whatever it's called) and it won't spoil. 2. Bring back junk metal salvage and process them in the fabricator to get two titanium and make a knife. Use the knife (right click to strike) the edges of coral to harvest coral samples. You'll see little slices of coral going down (into your inventory, access with Tab). With that and very small cubes of salt, found usually in or near the plant growth to make bleach to desalinate water in the fabricator. The salt is the biggest pain in the butt, until you get a base and build water processors. 3. The stalkers, alligator gar/barracuda like fish, normally found at lower depths in the starter zone are aggressive and deadly. When swimming around always be holding a fish in your hand. Instead of attacking you, the Stalker, will take it from your hand and usually becomes your semi-buddy, bringing you pieces of junk metal. 4. Because there is currently no death penalty, don't worry about dying, you'll just respawn. 5. Play this game!!! Minimum: OS: OS X 10.9 Mavericks. Processor: Intel Haswell 2 cores / 4 threads @ 2.5Ghz or equivalent. Graphics: Intel HD 4600 or equivalent. Storage: 6 GB available space. Additional Notes: Subnautica is an Early Access game, and minimum specifications may change during development. PC Requirements: Minimum CPU: Intel Pentium Dual-Core Processor G640 2.8 GHz / OR / AMD Athlon 64 X2 Dual Core 4200 RAM: 2 GB OS: Windows Vista / 7/ 8 32&64 Bit* Video Card:Video Card: (256) MB RADEON HD 3450 / BFG GeForce 7800 GS OC (256) MB Direct X 11 compatible Sound Card: YAS Free Disk Space:6 GB * Note- I'm playing this on W10, no issues. The above was probably released before W10 came out.