Go to assets>minecraft>environment Step 3. Open up the texture pack that has the sky you want. How to add custom sky to texture resource pack? Paste it into your texture pack, replacing the one you currently had. You dont NEED MCPatcher for custom skies. How do you make a custom sky in minecraft? Open the folder where you downloaded the file. zip file of texture pack (resource pack). Follows 8 Steps bellow to install Milkyway Galaxy Night Sky Texture Packs 1.17.1/1.16.5 on Windows and Mac : 1. Milkyway Galaxy Night Sky Texture Packs 1.17.1/1.16.5 – Minecraft Resource Packs. How to install minecraft night sky texture packs? To put it more accurately, the sky will be completely replaced by a realistic one, but with a little nuance – this is just textures, which means no clouds move. Then the special texture pack for Minecraft Bedrock is presented to your attention modifying the entire upper part of the world.