Terrain

Terrain covers all the mineable and digable tiles found throughout the map. This include all the blocks found in the overworld and the precious ores found undergound.

Overworld
All solid tiles on the surface can be mined for initial resources like stone. For more advanced crafting materials, you will need to head underground.

The Overworld is made up of several different types of terrain:

Grass
Grass makes up the majority of most map types. It can be easily identified by its green grassy color. Grass can be tilled into humus, and naturally spawns several types of animals such as cows and pigs. Grass is also home to most flora like trees, flowers and wild wheat.

Mining or digging grass blocks will yield mud 20% of the time.

Stone
Stone is a natural grey color with lots of bumps indicating weathering. The surface stone is important for starting out because basic utilities need to be made and basic weapons need to be crafted before heading down to the hostile dungeons.

Mining or digging stone blocks will yield stone 80% of the time.

Sand
Sand is yellow in hue and usually spawns close to water. Gravel is known to appear nearby sandy beaches. The majority of the desert is made up of sand blocks. Palm trees and cacti grow on sand as well as Snakecrabs.

Mining or digging sand blocks will yield sand 90% of the time.

Jungle
Jungle grass appears to have a darker green shade than regular grass and vines can be seen on the sides of the blocks. Jungle trees, and banana trees populate the area. Froggies and brownies along with their villages also spawn there. The jungle is also the place that Skootenbeeten call home, along with the delicious jungle mushrooms and blue radishes.

Snow
The frigid snow is white in color and spawns snowy trees. Snowcherry trees also spawn naturally, from which one can obtainsnowcherries. Yeti live here, and happily punch the indigenous Reindeer to death. Strangely enough, cave mushrooms also spawn here. Snowcherry tree and cave mushroom can only be cultivated on snow.

Mining or digging snow blocks will yield snow piles 25% of the time.

Humus
Most "soft" tiles (as in not stone or ores) can be tilled and turned into humus, fertile soil ready for planting. Any planted crops require the ground to be tilled into humus. Humus can be reverted back to it's original state by right-clicking and selecting un-till.

Ores
Gravel, Copper, Iron and Coal can all spawn on the surface, and are good indicators of the mining possibilities beneath them. If you are lucky, large deposits will spawn on the surface. you can skip the mining all together by placing Mineshafts upon them.

Underground
Mine downwards and you will reach the underground layers. The underground is mostly composed of stone but some deposits of ores can be found in groups, with rarer ones the deeper you go. If these tiles are mined, they have a chance of leaving behind raw materials for your townsfolk to craft with.

Be aware that there are hundreds of hostiles walking around but other than that it's a great place to find resources.

Dirt
Brown dirt makes up the majority of the first underground layer, becoming more scarce after that. Mining it has a higher chance of producing Mud blocks than with mining grass, with a rate of 35%.

Stone
Underground stone can be found by digging down through surface stone. Mining it can give you very useful stone blocks. Their item drop rate is the same as overworld stone.

Sand
On desert maps, Sand appears underground too. It drops sand blocks which are used in the production of sand walls and glass. Their item drop rate is the same as overworld sand.

Snow
Underground, snow can drop snow piles when mined. This can be gathered up by using the production menu to make snow buckets. Their item drop rate is the same as overworld snow.

Gravel
Gravel can spawn underground, and is noted for its yellow specks. It is not, however, gold, but it can drop useful flint when mined, which is used to make cooking fires. Gravel will drop flint only 30% of the time.

Coal
Coal, the well-known black ore, can be found underground. It's the only black ore, and is usually found in high abundance just under the surface. It can be used to craft torches which are used for making Mineshafts, and is a component in making iron armor.

When mined, coal will be produced 80% of the time.

Iron
Iron, while possibly found on the surface, is usually a lot more common on level 2 and below. It's small orange specks are easy to spot, and it's ore is used for things such as Kitchen Stoves, iron armour, weapons and Anvils.

When mined, iron ore will be produced 80% of the time.

Copper
Copper ore looks very similar to Iron, but has larger, more obvious orange specks. It is used to craft more advanced ITE weapons and armor, such as Goblinite.

When mined, copper ore will be produced 80% of the time.

Silver
Silver is found deep in the dungeon and is quite rare, as it cannot be mined using a mineshaft. It's ore can be used to make the Silver skootenbeeten statue or sets of weapons and armour.

When mined, silver bars will be produced 80% of the time.

Gold
Gold, like silver, is rare, can be found deep in the dungeon and cannot be mined using a mineshaft. Gold can be used to make several decorative statues or sets of weapons and armour.

When mined, gold bars will be produced 80% of the time.

Dense Stone
Dense stone is found deep within the dungeon. It can be mined and produces stone blocks, however unlike regular stone tiles it can be mined using a mineshaft to generate endless stone.

Dungeon Wall
These blocks along with stone, take up most of the underground blocks. It takes a while to break though, but once mined, it can drop regular stone blocks (drop rate is the same).

Dungeon Room
The Dungeon room is a red brick, found on the lower levels of the dungeon. When mined, it simply drops regular stone blocks (again, drop rate is the same).

Water
Water can be found on all layers. On the surface, two areas of water generally spawn:
 * A large circular lake.
 * A long river that divides the map in two.
 * Small pockets of water in the jungle.

As you dig underground, the layout of the water will change. The lake goes as deep as possible. The river is only present on the surface and the layer immediately below it. On the first underground layer, the river is readily visible. However, the river still poses a threat on the second floor down. Mining directly beneath the river will cause it to flood tunnels, much like if you mined into the lake.

The small pockets of water in the jungle follow the exact same rules as the river.

Note that for town defence, bridges over water can be deleted while hostiles are on top of them, either stranding or outright killing them. Creating a long section of bridges can be used to defend against high level sieges.

Lava
Lava can be found in the lower layers of the dungeon and it functions similarly to water.

A tactic (although it uses admin commands so it can be considered cheating) against a siege, is to put lava or water around the enemies and then un-pause the game. The enemies must be trapped by the fluid in order for them to die, otherwise they will only be pushed around. The water or lava will then kill the entire siege with very little risk to your townsfolk.

Floods
Floods are caused by mining into a body of water or lava, no matter the size..

Once you mine into a body of water or lava, it will flood your mine, and push away any entities nearby. Any items in the way are destroyed. It will flow down holes to flood lower chambers. There is currently no way of removing water from flooded chambers. A flood can, however, be contained by placing a wall fluid blockers in the way of the flood.