| Game | Achievement | Points | From | To | |
|---|---|---|---|---|---|
|
|
Do You Remember When We Met | 0.53 | 06/22/2025 00:00:00 | 06/22/2025 23:59:59 |
| H3: ODST: Play a game of Halo 3: ODST on the 22nd of any month. | |||||
|
|
A Long Time Ago | 0.52 | 07/06/2025 00:00:00 | 07/06/2025 23:59:59 |
| Halo 4: Play a game of Halo 4 on the 6th of any month. | |||||
|
|
Destination Vacation | 1.29 | 07/07/2025 00:00:00 | 07/07/2025 23:59:59 |
| Halo 2: View one of the seasonal signs on Zanzibar in classic multiplayer. | |||||
|
|
Back At It | 0.58 | 07/09/2025 00:00:00 | 07/09/2025 23:59:59 |
| Halo 2: Play a game of Halo 2 Anniversary on the 9th of any month. | |||||
|
|
A Day To Remember | 0.57 | 07/15/2025 00:00:00 | 07/15/2025 23:59:59 |
| Halo CE: Play Halo: CE on the 15th of any month. | |||||
|
|
Fifth Nightmare | 1.20 | 10/31/2025 00:00:00 | 11/04/2025 23:59:59 |
| Complete the Safe House Nightmare job on the Mayhem difficulty or above. | |||||
|
|
A Horrible Seventh Nightmare | 1.29 | 10/31/2025 00:00:00 | 11/04/2025 23:59:59 |
| Complete the Safe House Nightmare job on the Death Sentence difficulty with the One Down mechanic activated. | |||||
|
|
Santa's Little Helper | 1.27 | 12/01/2025 00:00:00 | 12/31/2025 23:59:59 |
| Deliver all presents in the eight levels when they are touched by frost in December | |||||
|
|
Catch a Cold | 0.80 | 12/01/2025 00:00:00 | 12/31/2025 23:59:59 |
| Collect all ten snowflakes that appear in December before they melt | |||||
|
|
Christmas In Cairo | 1.36 | 12/10/2025 00:00:00 | 01/05/2026 23:59:59 |
| Decorate the Christmas tree. | |||||
|
|
Reindeer Hunter | 1.81 | 12/10/2025 00:00:00 | 01/05/2026 23:59:59 |
| Decorate the Christmas tree on each level to unlock Rodolfo player model. | |||||
|
|
Xmayhem Terminator | 1.79 | 12/18/2025 00:00:00 | 01/07/2026 23:59:59 |
| Pick up The Gift to become the T-IM101 | |||||
|
|
Hasta La Vista, Baby! | 1.77 | 12/18/2025 00:00:00 | 01/07/2026 23:59:59 |
| Terminate the T-IM101 | |||||
|
|
Christmas Shopping | 1.45 | 12/25/2025 00:00:00 | 12/25/2025 23:59:59 |
| Buy an item from the Camp Store on Christmas. | |||||
|
|
Endless Day | 1.86 | 01/21/2026 00:00:00 | 01/25/2026 23:59:59 |
| On this day, Endless technology lights up and strange things appear... | |||||
|
|
Endless Day | 2.19 | 01/21/2026 00:00:00 | 01/25/2026 23:59:59 |
| …the galaxy as the Archivist, Emlek Tarosh, fulfills its duty. | |||||
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|
Endless Day | 1.27 | 01/21/2026 00:00:00 | 01/25/2026 23:59:59 |
| ...in the ruins all across Auriga, and even throughout... | |||||
|
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Endless Day | 1.85 | 01/21/2026 00:00:00 | 01/25/2026 23:59:59 |
| You have unlocked the Endless archivist; the being that watches the watchers… | |||||
|
|
Cherry-Picked | 1.34 | 04/01/2026 00:00:00 | 04/30/2026 23:59:59 |
| Play the game in May 2019 to celebrate its Japanese release and the Hanami festival, or during April each year | |||||