diff --git a/README.md b/README.md
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-# nssb
-Mod to use with nssm
-It adds buildings with monsters spawners around the world and the Morlendor dimension which can be reached by portals that spawns like the other buildings.
+# minetest mod nssb
 
-License: LGPL
-License for media: CC BY-SA 4.0
+BIOME integration for nssm, the not so simple buildings
+
+## information
+
+A MAPGEN mod for Not so simple mobs (NSSM mod) that add spanners and new BIOME underground
+
+It **add [buildings](#buildings) with monsters spanners around the world**, also
+as feature **the [Morlendor](#mordenlor) dimension which can be reached by portals that spawns**
+like the other buildings.
+
+***From the portal, you have to follow the same direction of travelling from the Shire to Mordor!
+Good luck!***
+
+![screenshot.jpg](screenshot.jpg)
+
+#### Morlendor
+
+This is a new BIOME apart of the NSSM ones, it has a central temple where you appears,
+the mobs there will be so hostile and the nodes will be pretty rare and hard to pick.
+
+There are many minerals (around ten new ones) and many new enemies (around six new ones).
+
+![screenshot-large.png](screenshot-large.png)
+
+#### Buildings
+
+This mod provides new forms of structures for living NSSM mobs, by example will provide
+a new BIOME for each mob boos like kind event just the simpel BIOME from NSSM.
+
+There are many new structures (around 20 new) inclusive inside the already provides by the NSSM.
 
 
+## Technical information
+
+This is a continuation of NPX Team's mod and currently provides bugfixeds and user contributions.
+
+No new features are developed yet! Any new contribution please mantains most backguard compatibility.
+
+### dependences:
+
+* nssm
+* tnt
+* mobs
+
+### conflicts
+
+This mod adds a dimension in the depths of the map, the [Morlendor](#mordenlor), **configurable**,
+layer and in future autodetect the `nether` and `caverealms` layers to avoid conflicts.
+
+### Nodes definitions
+
+| Name Game            |  Name internal            | notes              |
+| -------------------- | ------------------------- | ------------------ |
+| Memoryone            | nssb:memoryone            | ·Non naturally generated ·Unbreakable        |
+| Mossy Stone Brick    | nssb:mossy_stone_brick    | ·Same as Stone Brick except texture     |
+| Stone Brick          | nssb:stone_brick          | ·Default Stone Brick |
+| Very Mossy Stone Brick | nssb:very_mossy_stone_brick | ·Same as Mossy Stone Brick except texture  |
+| Mossy Stone Column   | nssb:mossy_stone_column   | ·Same as Stone Brick except texture ·Screwdivable |
+| Stone Column         | nssb:stone_column         | ·Same as Mossy Stone Column except texture |
+| Seastone             | nssb:marine_stone         | ·Generated in oceans · Hard beetwen stone and bricks |
+| Seastone Brick       | nssb:marine_brick         | ·Same as Seastone except texture |
+| Sea Meselamp         | nssb:marine_meselamp      | ·Hard as Obsidian Glass ·Emits light level 15 |
+| Morlamp              | nssb:morlamp              | ·Same as Sea Meselamp except texture |
+| Mantis Clay          | nssb:mantis_clay          | ·Same as Default Stone except texture |
+| Hardened Mantis Clay | nssb:hardened_mantis_clay | ·Hard as diamond ore ·Same except texture |
+| Ant Stone            | nssb:ant_stone            | ·Same as Hardened Mantis Clay except texture |
+| Vine                 | nssb:vine                 | ·Climbable ·Flamable · slab,Can be placed only on solid walls |
+| Liana                | nssb:Liana                | ·Same as Default Ladder except texture |
+
+### New buildings
+
+This mod automatically puts in map some special structures based on enemies and biomes:
+
+| build name mapgen   | build description biome    | frecuency    | biome |
+| ------------------- | -------------------------- | ------------ | ----- |
+| portal              | Portal center temple       | only one     | mordenlor |
+| spiaggiagranchius   |                            | often        | sand  |
+| acquagranchius      | struture for some marine   | often        |       |
+| ooteca              |                            | often        |       |
+| minuscolaooteca     |                            | often        | grass |
+| piccolaooteca       |                            | often        | grass |
+| arcate              |                            | often        | sand  |
+| grandepiramide      |                            | often        | dirt  |
+| collina             |                            | often        | grass |
+| megaformicaio       |                            | often        | grass |
+| antqueenhill        | antqueen trone inside ants | often        | grass |
+| rovine1             |                            | often        | grass |
+| rovine2             |                            | common       | stone |
+| rovine3             |                            | common       | grass |
+| rovine4             |                            | common       | grass |
+| rovine5             |                            | common       | grass |
+| rovine6             |                            | common       | grass |
+| rovine7             |                            | common       | grass |
+| rovine8             |                            | common       | grass |
+| rovine9             |                            | common       | grass |
+| rovine10            |                            | common       | grass |
+| bozzoli             |                            | common       | grass |
+| picco               |                            | often        | sand  |
+| piccoghiaccio       |                            | often        | snow  |
+| icehall             |                            | often        | ice   |
+| piccomoonheron      |                            | often        | snow  |
+| doppiopiccoghiaccio |                            | often        | snow  |
+| doppiopiccosabbia   |                            | often        | sand  |
+| piccoscrausics      |                            | often        | sand  |
+| fossasand           |                            | often        | sand  |
+| blocohouse          |                            | common       | stone |
+| bigblocohouse       |                            | common       | stone |
+| blocobiggesthouse   |                            | common       | stone |
+
+
+### Spawn definitions
+
+This mod automatically will spawms some specific enemies over the map:
+
+| monster      | nodes under    | nodes around    | moment where  | level where spawn    |
+| ------------ | -------------- | --------------- | ------------- | -------------------- |
+| nssm:morvy   | nssb:morentir  | nssb:morentir   | day and night | mordenlor/underground|
+| nssm:morbat1 | air            | nssb:morelentir | day and night | mordenlor |
+| nssm:morbat2 | air            | nssb:morelentir | day and night | mordenlor/underground|
+| nssm:morbat3 | air            | nssb:morelentir | day and night | mordenlor |
+| nssm:morlu   | nssb:morentir  | nssb:mornen     | day and night | mordenlor |
+| nssm:morde   | nssb:morentir  | nssb:mornar     | day and night | mordenlor |
+| nssm:mordain | nssb:morentir  | nssb:morentir   | day and night | mordenlor/underground|
+| nssm:morgut  | nssb:morentir  | nssb:morentir   | day and night | mordenlor/underground|
+
+### Crafting definitions
+
+WIP
+
+# LICENSE
+
+* License: LGPLv2.1 or later
+    * Copyright 2016-2018 NPX Team and Contributors
+    * Copyright 2017-2019 taikedz
+    * Copyright 2021-2022 tenplus1
+    * Copyright 2021-2022 PICCORO Lenz McKAY @mckaygerhard
+* License for media: CC-BY-SA 4.0
+    * Copyright 2016-2018 NPX Team and Contributors
+
+Check [LICENSE.txt](LICENSE.txt)
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