Costume Quest in May last year so deleted the save files.
Grubbins on Ice story continues from the end of the main game & takes you to Repugia. It plays exactly the same but gives you some extra costumes to try including Pirate & Yeti.
The end of the game leaves you in the middle of space with various portals, unfortunately no news yet on if Double Fine are working on a sequel or extra DLC content (highly unlikely because it is an old game now).
Anyhow an enjoyable few hours & if you like the main game it's more of the same joyous fun.