Reach the Santa Maria Houses rooftop in Arc Raiders by climbing the sand against the neighboring building, crossing the metal walkway toward the yellow bell tower, and activating a Fireworks Box on the roof. The project supplies boxes at Stage 3; ARC Raiders Items offers another route for obtaining supplies before a raid.

Prepare for the rooftop run

Soul's Offering unlocks in the Projects menu at Raider level 20. Its first three stages require donations; Stage 4, Honor the Fallen, sends you to Buried City with a Fireworks Box. Check the in-game countdown before committing to the route: the supplied project schedule lists November 16 as the deadline.

Open Projects and check your current stage, then compare its requirements with your stash. Keep at least one of the three Fireworks Boxes awarded by Stage 3 for the rooftop. If all three are spent, craft a replacement at the Explosives Bench before setting out.

Follow the Santa Maria rooftop route

Approach Santa Maria Houses from the alley north of the buildings. The route uses a neighboring building and a walkway; it does not require a boss kill.

Enter Buried City with a Fireworks Box in your bag and travel to the alley north of Santa Maria Houses.
Find the neighboring building with sand piled against its wall. Use the sand as a ramp to climb onto the building.
Cross the metal walkway toward the yellow bell tower, then climb onto the Santa Maria Houses rooftop.
Place and activate the Fireworks Box. Placement alone does not finish the objective.
Open Projects and check Honor the Fallen before heading to an extraction point.

The Projects screen is your check that the rooftop objective has registered. Do not assume the task is complete just because the box is on the roof; activate it first and verify the objective before leaving.

Finish the material stages without wasting a raid

Vaulto's Offering requires 1 Dead Flowers, 2 Rock Salt, 15 ARC Alloy, and 1 Expired Respirator. Ferrovia's Offering then requires 3 more Dead Flowers, 2 Railway Lanterns, 15 Advanced ARC Powercells, and 10 Remote Raider Flares. Standard Powercells do not count, so check the full item name before donating.

Murteta's Offering requires 2 Fancy Plates, 1 Mask Fragment, 1 Insulation Roll, and 5 Fertilizer. Its rewards include the three Fireworks Boxes needed to prepare for the rooftop. Keep one instead of using every box during a fight.

Search Old Town residential interiors for Dead Flowers, Rock Salt, and Fancy Plates. Check drawers, kitchen cupboards, tables, and floors rather than limiting the search to large crates. If rooms have already been emptied, move to another housing block.

For an Expired Respirator, check medical loot at Testing Annex, Buried City Hospital, or a small medical hut. Search supermarket side rooms and security lockers for Railway Lanterns. Wait for storm conditions at the Storm Huts when searching for an Insulation Roll.

Fertilizer can be found in shallow water on Riven Tides or in domes on Dam Battlegrounds. Defeated ARC units other than Ticks can drop ARC Alloy. Once its blueprint is learned, the level 1 Utility Station can craft 10 Remote Raider Flares for 20 Chemicals and 40 Rubber Parts.

Keep four Dead Flowers for the first two stages. If you also want to craft the Offering Display Table after the project, reserve three additional flowers and 30 Sheet Metal. Recycling flowers after Stage 1 can leave you short for both the next donation and the table.

Before your next drop, check the missing items in Projects and reserve a Fireworks Box for Honor the Fallen. Search the listed locations first, or consider buy ARC Raiders Trinkets for a material shortage, then extract and donate before attempting the rooftop.

Planning your Soul's Offering run U4GM offers ARC Raiders items for your next raid. Visit https://www.u4gm.com/arc-raiders/items to explore available options, check your stash, and plan your route to Santa Maria. Remember to save a Fireworks Box for the rooftop, and contact the 24/7 support team if you need help.