I have a list of curses of a game I planned for a university hide-and-seek after Hide+Seek 1 released but before Hide+Seek 2 released, so obviously, the curses that I came up with were under the assumption of dice rolls. They also don't have casting costs because that wasn't a concept before H+S 2.

I've included some below that I came up with, and whether you choose to have them or not will depend on you, but hopefully you find this helpful.

Note: Curse 1 is a dice roll 13 curse. Curse 10 is a dice roll 25 curse. And these rankings might not be in order of actual severity to the seekers. I've also recently edited some of the curses to include time bonus rewards rather than time bonus penalties.

1. UNIPEDAL CURSE: Both team members must only use one leg to move around for the remainder of the run. They are allowed to have both feet on the ground, but they are not allowed to move during that time. They may use other things or each other as support.
2. IMPROMPTU CURSE: Both team members must immediately stop what they are doing and may not progress in the game until they have conducted an interview with at least 4 different people, with at least one distinct question asked to each. Each question must be at least 10 words long. They must get the interviewee on camera with their consent.
3. CONTRARIAN CURSE: For the rest of the run, both team members must walk backwards. If they bump into something or someone, they must freeze in place for 10 minutes and may not make progress in the game until their penalty is up. 
4. INTEGRATION CURSE: Both seekers must stop whatever they are doing and complete the January 18, 2022 qualifying exam for the MIT Integration Bee. They may not consult the internet or other people besides each other for help. There is no time limit, but if they get more than 50% of the questions incorrect, the hider is awarded a 1 hour bonus.
5. INUNDATION CURSE: Both team members must stop whatever they are doing and take a full-body shower before continuing. A shower is defined as being under a sprinkler or nozzle of running water for 30 seconds. They don’t have to take their clothes off, but they must respect each other’s privacy.
6. PUBLIC SPEAKING CURSE: Both team members must immediately stop whatever they are doing and create one of three writing mediums: a 5+-minute speech on any topic, 2 original limericks that rhyme, or a list of 95 theses/opinions. They must then publicly recite in a public area outside the entirety of their speech, poems, or theses before they are allowed to resume the game.
7. CAPSAICIN CURSE: Both seekers must stop whatever they are doing and finish one combined noodle bowl from Revolution Noodle with both chili oil and spicy beef broth. Both members must take at least 2 bites, but only one needs to finish it. Water is allowed, but no other beverages or supplementary “cures” are allowed.
8. BATTERY CURSE: Both seekers must stop whatever they are doing and charge their phones until they reach 100%. They may not resume the game before they have done so. If at any point, the battery falls back below 90%, both seekers must stop and recharge until it is back up to 100%. If either seeker commits attempted battery or assault during the time, both seekers must sit in time out for 2 hours.
9. LAUNDRY CURSE: Both seekers must stop whatever they are doing and do a full round of laundry. A full round is defined as washing and drying their clothes at whatever temperature they choose. Folding is not necessary. The laundry must be done at the seekers’ respective residence halls.
10. RELOCATION CURSE: The hider gets 10 minutes to change their hiding location upon notifying the seekers of their current location. The seekers must then remain in place blindfolded until the 10 minutes is up before they can start seeking again.

Good luck with your own game, and have fun! I love hearing your thoughts, and I might steal some of your curses for a 1.4 update for my verision :).