Check the Steam offer before planning a claim
The ANOMALITH early purchase bonus on Steam includes a collaboration side mission, a collaboration costume, the T-6407J probe skin, and a Development Materials Set. The official Steam listing gives its availability period as October 29 through November 11, 2026, in JST. Eligibility and in-game delivery are separate questions, so read both the purchase window and the reward conditions.
The official ANOMALITH Steam bonus information is the source for this Steam-specific offer. Do not replace its dates or contents with the different console preorder details shown elsewhere on the official website.
What the Steam early-purchase bonus includes
| Bonus | Officially listed detail |
|---|---|
| Collaboration side mission | “Contradictory Otherworld Response,” with the Lost Property Control Organization |
| Collaboration costume | Lost Property Control Organization Collaboration Costume Set |
| Probe skin | T-6407J |
| Development Materials Set | Two Linked Tiles, two Advanced Surreal Firearm Parts, and two Warning Pagers |
The material quantities describe this bonus package. They are not development recipe costs or a drop table for those items.
The listing notes that designs, contents, and specifications can change, and that the bonuses may become available separately later. That possibility is not a confirmed later date, price, or permanent free offer.
Use the Workshop board for mission rewards
The collaboration mission is accepted from the board in the Workshop. Side missions unlock as the game progresses, so an eligible purchase does not mean the mission must be visible immediately after starting.
Follow the official condition in order:
- Advance until side missions become available.
- Inspect the Workshop board for the collaboration mission.
- Complete “Contradictory Otherworld Response.”
- Return to the board to claim the collaboration costume and T-6407J probe skin.
The official wording does not name a required chapter or a fixed number of completed Dives. If you have not yet reached the side-mission feature, keep following your story progression instead of relying on a guessed unlock threshold.
Wait for the material-set milestone separately
The Development Materials Set uses a different delivery condition: it is granted after the Shooting Range is unlocked. It is not listed as a reward that must be claimed after completing the collaboration mission.
Also keep the offer separate from Digital Deluxe. The Deluxe package lists Armed Schoolgirl outfits, three bonus weapons, digital extras, and its own consumable set. The October 7 demo update's ability to develop one Armed Schoolgirl set after clearing the demo is another distinct feature.
For another platform, consult its own product details. The official ANOMALITH website presents console preorder conditions including a deadline of 23:59 JST on October 28, 2026, and platform-specific additions. Those details should not be silently merged into Steam's October 29–November 11 early-purchase offer.
FAQ
When is the Steam early-purchase bonus available?
The official Steam listing states October 29 through November 11, 2026, in JST. Check the current listing when purchasing.
Where do I get the collaboration costume and probe skin?
Complete the collaboration mission, then claim the rewards from the Workshop board. The mission itself is accepted from that board when available.
When is the Development Materials Set granted?
The official condition is unlocking the Shooting Range. That delivery is separate from the collaboration mission's completion rewards.
Does the bonus include the Armed Schoolgirl triple combo?
The Steam page lists that combo under Digital Deluxe Edition contents. It is not named among the Steam early-purchase rewards listed here.