Venus fragments
Hidden and entrenched in the mountainous peaks of Venus, the Corpus practice their industrious craft.
Earth fragments
Earth has been long abandoned due to its toxic atmosphere.
Dog Days
Dog Days was a summer-themed Tactical Alert in August of 2019.
Snowday Showdown
Snowday Showdown was a Christmas-themed Tactical Alert running in December 2016.
Long Shadow
Long Shadow was a Tactical Alert in late 2016 that saw the return of the Nightwatch Corps, last seen in Project Undermine.
One Thousand Cuts
The Tactical Alert One Thousand Cuts appeared in Hotfix 18.5.6. This was a series of new missions that appeared on Thursday and lasted until Monday.
Divine Will
The Divine Will Tactical Alert was a special mission on Venus that introduced the Razorback proxy.
Hallowed Nightmares
Hallowed Nightmares is a yearly Tactical Alert appearing around Halloween.
Project Undermine
Project Undermine was a Tactical Alert that saw the introduction of the Nightwatch Corps, as well as another run-in with the thief Maroo.
Emergency Exit
The Emergency Exit Tactical Alert was a special Alert mission where the Tenno protected two Bailiffs who were planning to defect from the Grineer.