A modded server runs Minecraft with one or more modifications (mods) that fundamentally alter or extend the game's content — adding new dimensions, machines, creatures, magic systems, or entirely reworked progression. Both the server and the player's client must have the same mods installed to connect.

Plugins run server-side only and do not require the player to install anything on their client; they typically add gameplay systems on top of vanilla Minecraft. Mods modify the game at a deeper level and must be installed on both the server and the player's client, often through a mod loader such as Forge or Fabric.

Popular categories include technical packs focused on automation and engineering (such as those featuring Mekanism or Thermal Expansion), magic packs built around spell systems and arcane progression (such as packs with Botania or Ars Nouveau), and RPG-style packs that add quests, custom bosses, and story-driven content. Many servers run well-known public modpacks to simplify installation for players.

You need a Minecraft client with the exact same mods and versions as the server. The easiest approach is to use a modpack launcher such as CurseForge, Prism Launcher, or ATLauncher, which can automatically install the correct modpack. The server listing on BestGames typically specifies which modpack to install and where to download it.

First identify the type of modpack that interests you — technical, magic, RPG, or a mix. Then check that your hardware can handle the modpack's requirements, since heavily modded Minecraft demands significantly more RAM than vanilla. Finally, read the server description for information about the modpack version, community rules, and whether the server is actively maintained.