Update: No Gravity Games 12 Days of Christmas Event:
So far I'm batting 1000 on predicting this event.
1.
Exorder (Mon 5th)
2.
Graviter (Tue 6th)
3.
Creepy Tale (Wed 7th)
4.
Destropolis (Thu 8th)
5.
Supersonic Tank Cats (Fri 9th)
6.
Strike Force Kitty (Sat 10th)
7.
Powertris (Sun 11th)
8.
Star Horizon (Mon 12th)
9.
Pool Pro GOLD (Tue 13th)
10.
Nova-111 (Wed 14th)
Games 1->9 on sale for $1.99ea, though if you failed to get stuff this deep into the event, skip it since you need to own everything to get today's game and those after for free.
Remaining games not on sale include a new addition, Primal Light, which was on sale until today. I'll still post a link, but I expect Creepy Tale 2 and Golden Force to be the last free games during this event as it would be a middle finger to anyone that bought Primal Light at launch while it was on sale.
Creepy Tale 2 <- Released Oct 7, 2021
Golden Force <- Released Feb 28, 2021
new:
Primal Light <- Released Nov 24, 2022 (not likely free, still odd the sale ended two days before this event ended)
Event:
https://nogravitygames.com/xmas-giveaway/
All of their Eshop games:
https://www.nintendo.com/search/?cat=gme&f=softwarePublisher&softwarePublisher=No%20Gravity%20Games