Silver Pines Boss Encounters & Missable Rewards
Major encounters include the tunnel ambush, Deputy Roberts, the Apartment 4B creature, the Congregation, the Sheriff and The Driver. Check each arena for missable mementos before you move on.
Updated 2026-10-20 · Hotfix 2 (Oct 16, 2026) · Research & source notes
| Entry | Boss / fight | Where | Achievement (players who have it) | Notes |
|---|---|---|---|---|
| 1 | Tunnel ambush | Tunnel on the way into town | In the tunnel, in a heartbeat (67.7%) | The Corroded Iron Ball memento is in this arena and is missable |
| 2 | Deputy Roberts | Sheriff's Department (the freed deputy in the basement) | Killer Frequency (43.0%) | Drops the Snake Earring memento (missable). Hotfix 2 fixed a bug where this fight could fail to progress. |
| 3 | Meeting Hall waves | Loomis Park Meeting Hall, during the mask task | – | |
| 4 | Flooded basement creature | Union Apartments, apartment 4B | – | |
| 5 | The Congregation | Inside the church, after the cube gate | – | |
| 6 | The Sheriff | Sewers main gate | – | |
| 7 | The Driver | Thelend Broadcasting | High Speed Collision (22.2%) | Drops the 8 Ball Gear Shift memento (missable) |
| 8 | Flesh tree (final boss) | Red Door nightmare | – | The Polaroid Negative memento is in the final arena (missable) |
This is a reference list of reported encounters, not a complete walkthrough or a verified chronological route. Achievement percentages are from the October 19 Steam snapshot.
Don't leave an arena empty-handed
Mementos in boss arenas are missable. Check every corner before you move on: the Corroded Iron Ball in the tunnel, the Snake Earring from Deputy Roberts, the Sea Polished Glass Shard in the third boss arena, the 8 Ball Gear Shift from The Driver and the Polaroid Negative in the final arena. Full list on the mementos page.
Hotfix 2 changed some objects in the final boss chase that were in the wrong state, and tuned Nightmare difficulty to make the early game a little smoother.
Sources
- Bonus Action: Silver Pines walkthrough, puzzles, codes & key locationscommunity · checked 2026-10-19
- games.gg: Silver Pines all 25 mementoscommunity · checked 2026-10-19
- Silver Pines achievements (Steam Community)official · checked 2026-10-19
- Steam global achievement unlock rates (Steam Web API)official · checked 2026-10-19
- Silver Pines official news & patch notes (Steam)official · checked 2026-10-20
Evidence limits and unknowns are described above. We have not represented community reports as our own playtest.