Bubble gum flavored jelly beans.
Wasabi almonds.
I know it is just green horseradish, but they fit nicely in a ramekin and I can “drink” them without touching them.
Dude;
This reminds me of something I heard about, some guy made an “Immersion booth” for when he played World of Warcraft, and he kitted it with all kinds of snacks and stuff. When his character had beef Jerky, he ate beef Jerky IRL. When they drank water in game, they drank water IRL.
It legit looked like an outhouse with the Horde insignia on the door.
In regards to OP’s Question: It’s been a while since I’ve Played WoW, or eaten anything while Playing WoW… I’ma go with Mountain Dew: Code Red, and whatever’s edible in my refridgerator.
His booth would need a catheter I’d he played a caster in classic.
Due to being on a diet because of all the awesome snacks I ate for the first three months of covid, I am reduced to water, sunflower seeds and popcorn.

Whole almonds. Unsalted, unseasoned, just pure almonds. Also, whole pecans.
Both are very healthy and tasty snacks!
I like dried mango and I love cheese curds~ Sometimes I love both, fruit and cheese is a nice combo.
Anything else is too messy, I get anal about food stuff by my PC.
Captain Morgan and a cig.
I made jambalaya for family meal at work a few days ago, brought a lot home, still eating it 
Today I made buttermilk biscuits to go with someone else’s chicken dish for family meal, and I’m taking that home for when I need something to snack on. Also fried the extra dough and tossed it in cinnamon sugar for their desert/snack
Cheesy crackers and bacon bits works for me.
Tobacco 
…and sweet tea.
Tobacco suppresses appetite and tea keeps you hydrated.
Depends really some nights is chips or salsa sometimes both i also have my weird candy nights i can’t stop eating those lol!
Woot woot Jambalaya is win for sure!
Alcohol /10 char