You start on a beach with a stone in your hand. No worries you don't need a tool to replace it if it breaks after some time of using it. With the stone you can chop down wood or stone. The tree breaks down when you took all its wood, don't try going on getting wood from the tree that falls over. Only small rocks do give stone, the big ones are just decoration. As soon as you see sparks flying you are chopping down the rock. The trees can not be removed to build on top of them, means the treestump stays.

To open the inventory press I. To see later additional slots by added bag click on the bag to the left in your inventory. To open the map press M, to move the map click on it and drag it. You can drop items to a friend on the floor, a bag will show up with the item inside, press E to access it and drag the item over to your inventory to take it. To close any menu or window just press esc.
Press Q to switch your weaponset.

The achivements you can earn by playing will lead you in a step by step order through the games options to build stuff.
Before you can build anything you need to go collecting some stuff, the basics are wood, stone and fiber (flax). You need 10 flax to craft one rope, so keep an eye open for plants with blue flowers. To view the achivements press F4 and to see the one you just need to do look at the inventory.

First achivement is to build a shelter. So you should press F5 to open the building menu and Tab to find the different menus for the buildingmenu. To drop an item or buildingpart you select it by the numbers shown and press E to drop it. Just a fair warning, only pillars seem to support all ceilings.

House safety:

To make sure noone can enter your house you need to drop a builders desk and create a clan in the tables menu. Creating that you choose a banner that will later show up on your door. Anyone could still break open your door and distroy the table to take over your base. But there is a timer of some hours on the house after distroying the table that allows intruders not to take over at once. You need to add the names of all people who should have permissions at your base to the list at the table and activate the rights. You can also place traps inside and around the house.

Remove buildings:

If you want to remove something you did build press F7 and hover above the item you want to delete. You will sometimes need to remove the supports after distroying the main item. A wall for example leaves usually some support sticks that you need to remove afterwards too, a ceiling might leave a frame that you need to take care of after distroying the floor or roof.

Character Customisation:

In order to have some character customisation you can only craft armor. Till now the game doesn't offer any other character changes, not even a female avatar. By hunting and mining and building a smithy you can craft some armor with hide, flax and metall. Upgrade the armor if you like to, it will protect you better.

Fields and Crop-plot flowerpots:

Some plants drop seeds when you pick them up. Building a field only works if you keep it at least one foundation away from any building if you build around it anything else, if you just drop it near your house you can move it very close to the other structure. Dropping cropplot flower pots works on balkonies and foundations or ceilings. You can build roofs above a terrace or porch by pillars support. You can grow berries, flax and mushrooms on the flowerpots, wheat and corn at the fields. ( I believe wheat is not in the game yet) But you can find wheat seeds in the treasure chests. Wheat you can cook afterwards in a fireplace or furnice to make bread.

Hunting:

You can find corn and berrie bushes as food in the madows and woods. Mushrooms are in caves. But you can also put some fishing nets up near the beach in the ocean to get fish or go hunting with a bow. You will need rope and wood to craft a bow. Aim slightly above the animal to hit it. Zebras and gazelles won't attack you but run away if you hit them, it takes several arrows to get one down but they walk and run only in a certain area and you can easy sneak a bit closer and shoot as soon as they aren't moving anymore. You can also hunt tigers, lions, hippos and rhinos. I would say the Rhinos are dealing most damage.
Did not try a crocodile yet though. The hunted animals give bones, fat, hide and meat. You will need the fat for torches, the rest for food and armor. Be careful if you did not craft armor yet an attacking animal can kill you.
There are also fishtraps to drop in shallow water, you will need wood and ropes to build them and have to look them up from time to time to pick up the fish. Now and then you will need to replace the ropes, they get used up. Same with all tools and weapons that get used up too by using them.

Swimming:

As soon as you run out of stamina you will get damaged as if a shark would bite you all the time till you run out of life and drown.

Respawn:

The bed does only work for the one who crafted it. Otherwise you will just randomly spawn anywhere on the map. There is not always a bag to pick up if you die, empty inventory after dieing.

Backpack:

Expanding your backpack is possible by crafting an extra bag and upgrading it with flax and hide. There is a slot in the inventory at the characterpicture where you can pull it into for using it.

Fireplace:

You can craft the fireplace to cook meat or fish and the food does end up automatically in your inventory after cooking. To start cooking you got a menu in your inventory for food preparation. After it burns down the fireplace will be gone.

Treasure hunt:

You can find stranded rowboats with a chest next to it. Open the chest by hitting it with an axe. You can find a treasure map inside or coins, a pirate hat, pirate sword and wheat seeds. If you click on the map you'll start a treasure hunt, look for a cross on your map. Treasure hunts got no timer on them. With 100 coins you can later on update your builders desk.

Raft:

You can craft a raft and upgrade it with bronzebars. You can tie the raft to a pier with a rope. You can see to its side a ladder symbol where you can get up in water.

Caves:

You can find metall on the hilltops, mainly copper and tin, you'll find iron in caves, but also the other metall. The mountaintops are also best spots to find flaxplants. Cave entrances can be a bit hidden behind trees. If you go into a cave you better make sure to carry enough torches or the materials to craft them to not get lost and trapped in a cave. Watch out also at the walls and ceilings of caves can be materials to farm.

Crafting with metall:

First step is to melt tin and copper to get bronze bars from the furnace. Then you can craft the head for a weapon or tool, like an axe head or an pickaxe head or a sword blade. After crafting this by your inventory, you will need to drop it in the anvil to hit it then several times with an hammer till it sais ready for use. For doing this you might want to craft at first the hammer. After you finished the weapon or tool head you can now craft the weapon or tool at the smithy with wood and flax. The same way you can craft with iron steelweapons and tools. To melt iron for getting steel you will need an upgraded furnice2, iron and wood.. To upgrade any item press F6.

Trebuchet and Ballista and Glider:

To play PVP you might want to build a trebuchet and ballista. You will need bronze for the ballista and the trebuchet. The trebuchet shoots very far and the ballista will kill animals by one hit because it deals much more damage than a bow. You can also build a glider but it is only useful to build that on a mountaintop or tower because it needs a cliff or very high tower to glide down ;) To build it you need to build its glider lancher at first on top of a wall. To build the glider go on top of that wall that holds it and you'll see that the launcher offers up there to add 3 glider parts.

Chat:

Ingame chat works by pressing T and the voicechat works by pressing R. Press F11 to see the players that are online.
For taking pictures ingame you can press F9 to remove the mousecurser and the life/stamina/ hunger bars.

The building panal looks like this:

Floors:

1 Builders Desk 50 wood
2 Wooden Foundation 25 wood
3 Triangle Wooden Foundation 15 wood
4 Wooden Platform 15 wood
5 Wooden Ceiling 20 wood
6 Wooden Triangle Ceiling 10 wood
7 Straw Roof 10 wood
8 Wooden Triangle Roof 5 wood

Poles and Walls:

1 Wooden Poles 20 wood
2 Wooden Support Pole 10 wood
3 Wooden Pole 50 wood
4 Wooden Wall 40 wood
5 Wooden Wall Window 35 wood
6 Wooden Jamb 30 wood
7 Wooden Door 15 wood
8 Bamboo Wall 30 wood

Stairs and Addons:

1 Wooden Poles diagonal 20 wood
2 Wooden Wall diagonal 50 wood
3 Bamboo Wall diagonal 35 wood
4 Wooden Stairs Streight 30 Wood
5 U-Shape Frame 10 wood
6 Wooden Ceiling Ladder 20 wood
7 Glider Lancher 100 wood
8 Pile 10 wood

Equipment:

1 Wooden Chest 15 wood
2 Bed 100 wood
3 Wooden Torch Holder 5 wood
4 Mooring Bollard 25 wood
5 Bronze anvil 20 wood 60 bronze
6 Furnice1 20 stone
7 Smithy 20 wood 20 stone 50 bronze
8 Boat 200 wood 150 bronze

Food and Weapons:

1 Campfire 10 wood 5 stone
2 Flowerpot 10 wood
3 Field 20 wood 20 stone
4 Fishtrap 15 wood
5 Tripwire 10 wood 10 bronze
6 Boulder Thrower 50 bronze
7 Ballista 100 wood 40 bronze
8 Trebuchet 200 wood 100 stone 50 bronze

Drinking water
Rain catcher: Build using Building panel (F5) on the floor outside of your base, wait for rain to fill the tank
Waterskin: Craft using Craft menu (F3) and fill with water from the Rain catcher
Drink water from waterskin to regain 10 stamina
Use water from waterskin to get antidote and mushroom soup

Herbalism
Gather 3 types of herbs from the main islands
Make poison from 2 of them and craft poison arrows
Shoot your opponent with a poison arrow to deal damage, reduce his visibility and burn 2% stamina per second for 15sec
Brew antidote using herbs and water to recover from poison faster
Higher levels of bandages also require herbs now

Quick slots
First iteration of the quick slots before the next patch with improved HUD
Drag&drop up to 4 eatable and usable items to the quick slots
Press [1], [2], [3], [4] to use previously assigned item
Items to assign: Food, Soups, Water skins, Bandages, Antidote
Quick slots don't work when using Building panel

New items
Bronze spear - cast the Bronze spear head in your furnace and forge it on an anvil to craft the spear
Steel trident - requires iron, craft and use it like the bronze spear
Bronze shield