you'll need to create a new ubisoft account, I believe you can still play your purchased games that are on steam but I recommend to do research

try to play

If your Ubisoft account that was linked to Steam was deleted, you need to contact their support and link a new account to Steam.

steam games won't work on new ubisoft account because your steam games are connected to that specific ubisoft account.i know because i have Far Cry 3 on my ubisoft account but i lost complete access to that account due to hacking and i created a new ubisoft account,but no matter how many accounts i created i still can't play Far Cry 3 because it is connected to my lost account.Or you can create a new steam and ubisoft account and purchase the games all over,which won't be the best option.

Make sure you are using the correct account as ubisoft does not close down inactive accounts that have purchased games on them.

Considering that Ubicrap revoked your licenses, if a game tied to that account still technically works, actually running it qualifies as piracy from legal perspective. In which case, modifying non-working ones to work changes nothing, you have no license either way.

How much you care is up to you.

Pretty sure Ubisoft gave warning several months before hand warning users with Ubisoft accounts, that if it has gone unused for longer than so many years that the account would be deleted.

I remember getting this email, but I only played a free game, so I didn't care if I lost the account.

Pretty sure all you would have had to do is log into the account to prevent your account from being deleted.

“Accounts that include purchased PC games are not eligible for deletion,”

https://www.theverge.com/2023/7/24/23805783/ubisoft-delete-game-accounts

You will own nothing and like it!
Company's shouldn't be able to delete account that people brought games through. this should be illegal and punishment should be death.

I doubt the account got deleted. But anyway, you'll need to link a new one and contact Ubi.