Here is the details on the server:
Base Server Info – https://apexminecrafthosting.com/mcmmo-server/
This server is a base install with more mods applied over it. Here is the core info on the server mods.
craftbook – https://dev.bukkit.org/projects/craftbook
All sorts of cool things like Tekkit.
mcmmo – https://dev.bukkit.org/projects/mcmmo
This Turns MC into an MMO where you can develop your characters skills.
AreaShop – https://www.spigotmc.org/resources/areashop.2991/
Shops with NPC are setup so you can buy and sell items.
Jobs – https://www.spigotmc.org/resources/jobs-reborn.4216/
You can get jobs to help fund your characters money income to spend in shop or other players. Money is also needed to RankUp.
MobArena – https://www.spigotmc.org/resources/mobarena.34110/
There is an NPC in the world that can take you to a Mob arena where you will fight waves of monsters.
Quests – https://www.spigotmc.org/resources/quests.3711/
There are NPCs with Quests that can be setup.
Rankup – https://apexminecrafthosting.com/rankup-plugin/
You can pay to RankUp.
DynamicShop – https://www.spigotmc.org/resources/ss-dynamic-shop-1-13-1-14-3.65603/
More shop systems.