The most probable explanation is that "116" is a simple typo for "1.6.4". Eaglercraft has a small but notable community around an unofficial server and client for Minecraft version 1.6.4. If you're seeking a "full" 1.6.4 experience, you are likely looking for the server software or client files for this version.

: Since these are often unpolished forks, users frequently report "out of memory" errors or sudden crashes during world generation.

Multiplayer server networks host 1.16 worlds by utilizing translation plugins like ViaVersion and ViaBackwards.

Eaglercraft servers use an independent registry system. Never enter your real Microsoft or Minecraft premium passwords into an Eaglercraft login screen. Use a unique password strictly for the Eaglercraft server network.

The heart of "116 Eaglercraft Full" beats in its multiplayer servers. The community has built a vast network of servers, each offering a unique experience. Because the game is "cracked" (meaning it doesn't require a premium Mojang account), the barriers to entry are extremely low, leading to a very active and diverse player base.