diff --git a/src/hcraft/examples/__init__.py b/src/hcraft/examples/__init__.py
index d272fc4b..21351cf7 100644
--- a/src/hcraft/examples/__init__.py
+++ b/src/hcraft/examples/__init__.py
@@ -1,31 +1,62 @@
 """#HierarchyCraft environement examples.
 
-Here is the table of available HierarchyCraft environments examples.
+Here is the list of available HierarchyCraft environments examples.
 
 If you built one of your own, send us a pull request so we can add it to the list!
 
+##Minecraft inspired
+
+See `hcraft.examples.minecraft` for more details.
+[CLI keyword: `minecraft`]
+
+| Gym name                         | Task description                                                       |
+|:---------------------------------|:-----------------------------------------------------------------------|
+| MineHcraft-NoReward-v1           | No task (Sandbox)                                                      |
+| MineHcraft-Stone-v1              | Get the cobblestone item mining it with a wooden pickaxe               |
+| MineHcraft-Iron-v1               | Get the iron-ingot item smelting raw ore gathered with a stone pickage |
+| MineHcraft-Diamond-v1            | Get the diamond item mining it with an iron pickaxe                    |
+| MineHcraft-EnchantingTable-v1    | Craft the enchanting table from a book, obsidian and diamonds          |
+| MineHcraft-Dragon-v1             | Get the ender-dragon-head by killing it in the ender                   |
+| MineHcraft-[name]-v1             | Get one of the Item of given `name` where Item is in env.world.items   |
+| MineHcraft-v1                    | Get all items at least once                                            |
+
+
+##Minigrid inspired
+
+[CLI keyword: `minicraft`]
+
+| Gym name                         | Documentation reference                         |
+|:---------------------------------|:------------------------------------------------|
+| MiniHCraftEmpty-v1               | `hcraft.examples.minicraft.empty`               |
+| MiniHCraftFourRooms-v1           | `hcraft.examples.minicraft.fourrooms`           |
+| MiniHCraftMultiRoom-v1           | `hcraft.examples.minicraft.multiroom`           |
+| MiniHCraftCrossing-v1            | `hcraft.examples.minicraft.crossing`            |
+| MiniHCraftKeyCorridor-v1         | `hcraft.examples.minicraft.keycorridor`         |
+| MiniHCraftDoorKey-v1             | `hcraft.examples.minicraft.doorkey`             |
+| MiniHCraftUnlock-v1              | `hcraft.examples.minicraft.unlock`              |
+| MiniHCraftUnlockPickup-v1        | `hcraft.examples.minicraft.unlockpickup`        |
+| MiniHCraftBlockedUnlockPickup-v1 | `hcraft.examples.minicraft.unlockpickupblocked` |
+
+##Parametrised toy structures
 | Gym name                         | CLI name          | Reference                                       |
 |:---------------------------------|:------------------|:------------------------------------------------|
-| MineHcraft-v1                    | `minecraft`       | `hcraft.examples.minecraft`                     |
-| MiniHCraftEmpty-v1               | `minicraft`       | `hcraft.examples.minicraft.empty`               |
-| MiniHCraftFourRooms-v1           | `minicraft`       | `hcraft.examples.minicraft.fourrooms`           |
-| MiniHCraftMultiRoom-v1           | `minicraft`       | `hcraft.examples.minicraft.multiroom`           |
-| MiniHCraftCrossing-v1            | `minicraft`       | `hcraft.examples.minicraft.crossing`            |
-| MiniHCraftKeyCorridor-v1         | `minicraft`       | `hcraft.examples.minicraft.keycorridor`         |
-| MiniHCraftDoorKey-v1             | `minicraft`       | `hcraft.examples.minicraft.doorkey`             |
-| MiniHCraftUnlock-v1              | `minicraft`       | `hcraft.examples.minicraft.unlock`              |
-| MiniHCraftUnlockPickup-v1        | `minicraft`       | `hcraft.examples.minicraft.unlockpickup`        |
-| MiniHCraftBlockedUnlockPickup-v1 | `minicraft`       | `hcraft.examples.minicraft.unlockpickupblocked` |
 | TowerHcraft-v1                   | `tower`           | `hcraft.examples.tower`                         |
 | RecursiveHcraft-v1               | `recursive`       | `hcraft.examples.recursive`                     |
 | LightRecursiveHcraft-v1          | `light-recursive` | `hcraft.examples.light_recursive`               |
-| Treasure-v1                      | `treasure`        | `hcraft.examples.treasure`                      |
+
+##Stochastic parametrised toy structures
+| Gym name                         | CLI name          | Reference                                       |
+|:---------------------------------|:------------------|:------------------------------------------------|
 | RandomHcraft-v1                  | `random`          | `hcraft.examples.random_simple`                 |
 
+##Other examples
+| Gym name                         | CLI name          | Reference                                       |
+|:---------------------------------|:------------------|:------------------------------------------------|
+| Treasure-v1                      | `treasure`        | `hcraft.examples.treasure`                      |
+
 
 """
 
-
 import hcraft.examples.minecraft as minecraft
 import hcraft.examples.minicraft as minicraft
 import hcraft.examples.random_simple as random_simple
diff --git a/tests/examples/minecraft/test_gym_make.py b/tests/examples/minecraft/test_gym_make.py
index d529cfe2..6c95b118 100644
--- a/tests/examples/minecraft/test_gym_make.py
+++ b/tests/examples/minecraft/test_gym_make.py
@@ -1,4 +1,4 @@
-from typing import List, Type, TypeVar
+from typing import TYPE_CHECKING, List, Type, TypeVar
 import pytest
 import pytest_check as check
 
@@ -6,44 +6,47 @@
 from hcraft.examples.minecraft.env import MineHcraftEnv
 from hcraft.task import GetItemTask, GoToZoneTask, PlaceItemTask, Task
 
-gym = pytest.importorskip("gym")
+if TYPE_CHECKING:
+    import gym
+
+gym_module: "gym" = pytest.importorskip("gym")
 
 
 def test_no_reward_gym_make():
-    env: MineHcraftEnv = gym.make("MineHcraft-NoReward-v1")
+    env: MineHcraftEnv = gym_module.make("MineHcraft-NoReward-v1")
     check.equal(env.purpose.tasks, [])
 
 
 def test_stone_gym_make():
-    env: MineHcraftEnv = gym.make("MineHcraft-Stone-v1")
+    env: MineHcraftEnv = gym_module.make("MineHcraft-Stone-v1")
     check.equal(len(env.purpose.tasks), 1)
     task = env.purpose.tasks[0]
     check.equal(task.name, "Get cobblestone")
 
 
 def test_iron_gym_make():
-    env: MineHcraftEnv = gym.make("MineHcraft-Iron-v1")
+    env: MineHcraftEnv = gym_module.make("MineHcraft-Iron-v1")
     check.equal(len(env.purpose.tasks), 1)
     task = env.purpose.tasks[0]
     check.equal(task.name, "Get iron_ingot")
 
 
 def test_diamond_gym_make():
-    env: MineHcraftEnv = gym.make("MineHcraft-Diamond-v1")
+    env: MineHcraftEnv = gym_module.make("MineHcraft-Diamond-v1")
     check.equal(len(env.purpose.tasks), 1)
     task = env.purpose.tasks[0]
     check.equal(task.name, "Get diamond")
 
 
 def test_enchanting_table_gym_make():
-    env: MineHcraftEnv = gym.make("MineHcraft-EnchantingTable-v1")
+    env: MineHcraftEnv = gym_module.make("MineHcraft-EnchantingTable-v1")
     check.equal(len(env.purpose.tasks), 1)
     task = env.purpose.tasks[0]
     check.equal(task.name, "Get enchanting_table")
 
 
 def test_all_items_gym_make():
-    env: MineHcraftEnv = gym.make("MineHcraft-v1")
+    env: MineHcraftEnv = gym_module.make("MineHcraft-v1")
 
     TaskOfType = TypeVar("TaskOfType")
 
@@ -76,7 +79,7 @@ def _task_names_of_type(
 
 
 def test_dragon_gym_make():
-    env: MineHcraftEnv = gym.make("MineHcraft-Dragon-v1")
+    env: MineHcraftEnv = gym_module.make("MineHcraft-Dragon-v1")
     env.reset()
     expected_tasknames = {
         "Go to meadow",