for someone totally new?
i guess it depends on what you mean by “addicting,” so i’ll try to put in “potential hours” as a reference. regardless i think all of these are quite fun and consuming for me for a while.

The Binding of Isaac Rebirth.
its difficulty sort of “scales” with how well you do in your runs: if you never beat mom, the next boss, the next boss etc, it’ll stay “easier” for as long as that takes. (and if it gets too hard when you start beating stuff, you can always wipe your save and start over, or start a new save, hah!)
the control scheme is extremely simple and it’s fine to not be completely perfect at it if you’re just going for basic runs and okay with relying more on “lucking” into victory. you really don’t have to take on mega-satan or whatever.
up to you if the horror-to-horror-adjacent visuals appeal or not. you do also have to be okay with the idea of dying, it’s a roguelike.
you can play this for literally thousands of hours.

Slime Rancher 1.
just a fun time shlorping up slimes. very low stakes and silly and cute. meant to be pretty accessible. if you’re brand new i could see it taking up some time, and it’s a good way to learn “video game logic.” i’ve spent 80 hours in SR1, playtimes can be a bit varied.

Plants vs Zombies (the original GOTY edition, and definitely not the ad-ridden mobile port)
old 2000’s popcap games in general were onboarding for many a gamer back in the day. i’ve spent 60 hours of it on steam, no idea how much back in the 2000’s. playtimes overall can be a bit all over the map on this one.

Garden Paws,
if you like cutesy and the idea of gathering stuff for villagers, with farming / animal raising mechanics. it’s slightly jank but it’s very endearing. no fail condition. (it’s somewhat similar to stardew valley with some differences!) this can be played almost infinitely, if you really like the loop, decorating, or have a few people to play with. playtimes tend to be 40-200 hours roughly.

Wobbledogs,
if you like the idea of raising cute pets with a genome and don’t mind the very subtle horror/bizarre aspects (they can die, eat each other’s bodies, and they pupate like caterpillars lol.) pretty sandbox game, and you can turn death off if you want. (or “clone” dogs you want to keep with the export/import tool in the menu.) this is a newer one for me so i’ve only put in 35 hours, but i fully intend to go back and try for some Huge Dogs TM. average seems about 20 hours but you can spend a lot if you like raising weirdo pets.