| Game | Achievement | Points | From | To | |
|---|---|---|---|---|---|
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|
Back At It | 0.58 | 06/09/2025 00:00:00 | 06/09/2025 23:59:59 |
| Halo 2: Play a game of Halo 2 Anniversary on the 9th of any month. | |||||
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Remember Reach | 0.56 | 06/14/2025 00:00:00 | 06/14/2025 23:59:59 |
| Halo: Reach: Play a game of Halo: Reach on the 14th of any month. | |||||
|
|
A Day To Remember | 0.57 | 06/15/2025 00:00:00 | 06/15/2025 23:59:59 |
| Halo CE: Play Halo: CE on the 15th of any month. | |||||
|
|
Storyteller | 1.39 | 07/04/2025 00:00:00 | 07/04/2025 23:59:59 |
| Have 12 murderous dates with Calendar Man | |||||
|
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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. | |||||
|
|
Cheerful Child | 1.02 | 10/31/2025 00:00:00 | 11/04/2025 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Normal difficulty. Unlocks the "Happy Baby" mask. | |||||
|
|
Gilliam's Sweet Little Baby | 1.04 | 10/31/2025 00:00:00 | 11/04/2025 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Hard difficulty. Unlocks the "Brazil Baby" mask. | |||||
|
|
Temper Tantrum | 1.06 | 10/31/2025 00:00:00 | 11/04/2025 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Very Hard difficulty. Unlocks the "Angry Baby" mask. | |||||
|
|
Water Works | 1.07 | 10/31/2025 00:00:00 | 11/04/2025 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the OVERKILL difficulty. Unlocks the "Cry Baby" mask. | |||||
|
|
Sixth Nightmare | 1.08 | 10/31/2025 00:00:00 | 11/04/2025 23:59:59 |
| Complete the Safe House Nightmare job on the Death Wish difficulty or above. | |||||
|
|
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. | |||||
|
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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. | |||||
|
|
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 | |||||
|
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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. | |||||
|
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Ho Ho Hell | 2.21 | 12/24/2025 00:00:00 | 01/06/2026 23:59:59 |
| Defeat Krampus | |||||
|
|
New Year | 1.19 | 12/31/2025 00:00:00 | 12/31/2025 23:59:59 |
| Year walk on New Year's eve. | |||||
|
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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… | |||||
|
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Be Mine | 1.87 | 02/14/2026 00:00:00 | 02/14/2026 23:59:59 |
| Use the heart emote on Valentine's Day. | |||||
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April Fools! | 1.29 | 04/01/2026 00:00:00 | 04/01/2026 23:59:59 |
| Beat the game during April Fools. | |||||