Simply click “download” on the mod you want and move it into your mods folder. Java Edition mods can be found all over the place via websites like Curse Forge. jar file that downloads to install Forge. A full list of Minecraaft Forge versions can be found here. After doing that, you’ll need to download the version of Minecraft Forge that matches your server version. Java Edition users of Minecraft will need Java installed.
World packs, like Aquatic Life, will require making a new World for that add-on.
Keep in mind that some add-ons, like texture packs, can be applied directly to your existing Worlds or Realms, but some that change the nature of the game a lot will require you to make a new Realm or World. There are add-ons that come free with a Realms Plus subscription, with all other packs costing real-world money (via Minecraft Coins), which can be bought in the store directly. Those playing on the Bedrock edition on consoles or through Windows can grab add-ons directly through the marketplace. Using add-ons in Minecraft Bedrock Edition Players on Java Edition will use mods that they can dig around for, mostly at no cost. Players on Bedrock Edition will primarily use add-ons, which can be purchased for real-world money in the marketplace. Minecraft players can customize their games using a plethora of add-ons or mods, depending on which version they’re playing.