Adding online multiplayer to my game - how hard could it be?

If anyone out there is interested in going to school for gamedev check out my sponsor SNHU: https://snhu.edu/wattdesigns Making lots of changes! Luckily a lot of the systems will transfer over, but it may set me back a few months. I'm curious to hear what you all think! 0:00 - Intro 0:15 - The game pitch 0:52 - Art revamp 1:27 - Multiplayer 3:26 - Combat 4:06 - NPCs 4:32 - Sponsor 5:25 - More NPCs 7:30 - Outro -SOCIALS: Steam: https://store.steampowered.com/app/1688640/Cleanup_on_Isle_Goblin/ Patreon: https://www.patreon.com/WattDesigns?fan_landing=true Discord: https://discord.gg/TM8n7ENJPa Instagram: https://www.instagram.com/watt.designs/ Twitter: https://twitter.com/WattDesigns Isle Goblin Website: https://islegoblin.com Personal Website: https://www.kilowattgames.com