Colors
Colors were introduced into GMC Jams beginning with GMC Jam 32. They have no effect on the jam other than the appearance of each jam's logo and associated graphics used when promoting the jam.
List of Jams by Colors
| Jam | Colors | Start | End | Host |
| GMC Jam 32 | Green, Red and Yellow | 22/02/2019 | 25/02/2019 | GameDevDan |
| GMC Jam 33 | Green and Red | 23/05/2019 | 27/05/2019 | GameDevDan |
| GMC Jam 34 | Green and Blue | 22/08/2019 | 26/08/2019 | GameDevDan |
| GMC Jam 35 | Red, Yellow and Purple | 28/11/2019 | 02/12/2019 | GameDevDan, Alice |
| GMC Jam 36 | Blue and Orange | 27/02/2020 | 02/03/2020 | GameDevDan |
| GMC Jam 37 | Orange and Green | 28/05/2020 | 01/06/2020 | GameDevDan, Alice |
| GMC Jam 38 | Brown, Aqua and White | 27/08/2020 | 31/08/2020 | GameDevDan, Alice |
| GMC Jam 39 | Fuchsia and Gold | 26/11/2020 | 30/11/2020 | GameDevDan, Alice |
| GMC Jam 40 | Green and Purple | 25/02/2021 | 01/03/2021 | GameDevDan |
| GMC Jam 41 | Green and Purple | 27/05/2021 | 31/05/2021 | EvanSki, Alice |
| GMC Jam 42 | Green | 26/08/2021 | 30/08/2021 | EvanSki, Alice |
| GMC Jam 43 | Periwinkle, White | 30/11/2021 | 07/12/2021 | Evanski, Alice |
| GMC Jam 44 | Red and Green | 24/02/2022 | 28/02/2022 | EvanSki, Alice |
| GMC Jam 45 | Purple, Grey | 26/05/2022 | 30/05/2022 | EvanSki, Alice |
| GMC Jam 46 | Purple | 25/08/2022 | 29/08/2022 | EvanSki, Alice |
| GMC Jam 47 | Red and Green | 17/11/2022 | 21/11/2022 | EvanSki, Alice |
| GMC Jam 48 | Magenta | 16/02/2023 | 20/02/2023 | EvanSki, Alice |
| GMC Jam 49 | Green and Yellow | 25/05/2023 | 05/06/2023 | EvanSki, Alice |
| GMC Jam 50 | Grey, Pearlescent | 31/08/2023 | 04/09/2023 | EvanSki, Alice |
| GMC Jam 51 | Blue, Green | 29/02/2024 | 04/03/2024 | EvanSki, Alice |