The short answer
The starting island is L-shaped. A purple crystal is in its upper-left area, a mirror stands to the right of it, and a fixed dark rock is immediately east of the mirror. The eastern ledge ends one water tile before the separate exit island. The trader starts in the lower-left lobe.
Before you start
- Start from a reset room matching the diagram. The demo recording was published June 17, 2026; its exact build number is not shown.
Match the starting layout
Joric video entry 15 · Community map identifier: mirror_17. The diagram shows the starting landmarks; use the video for exact tile positions and mirror angles.
Sources for this section
- Joric: Mirror Isles: 23 demo puzzle solutions · Checked 2026-09-13 · Published 2026-06-17
- Joric and contributors: Demo map and community-reported level identifiers · Checked 2026-09-13
- Joric: How the demo level identifiers were recorded · Checked 2026-09-13
- Arc Games Europe: Demo Content Update Now Live · Checked 2026-09-13 · Published 2026-06-19
- Thekla / Arc Games: Official developer announcements · Checked 2026-09-13
Hint 1 — a direction to explore Reveal solution / story details
The mirror and crystal can pass on different sides of the fixed rock. Look for room to position each one before trying to fill the water gap.
Sources for this section
- Joric: Mirror Isles: 23 demo puzzle solutions · Checked 2026-09-13 · Published 2026-06-17
Hint 2 — the useful arrangement Reveal solution / story details
Bring the mirror around the top of the rock and the crystal around its bottom. Two reflection positions move the crystal onto the ledge row that faces the exit island.
Sources for this section
- Joric: Mirror Isles: 23 demo puzzle solutions · Checked 2026-09-13 · Published 2026-06-17
Observed solution and gameplay Reveal solution / story details
The fixed rock stays in place. The video shows the route around it and the two crystal placements; this guide leaves the initial push counts unenumerated.
Joric’s demo recording, published June 17, 2026. Review this room from 6:48; the observed closing state is at 7:04. Exact build not shown. The video continues into other puzzle solutions.
Gameplay recorded by Joric. Order of the Sinking Star © Thekla / Arc Games.
YouTube connects when you load the player. No autoplay. If playback is unavailable, use the YouTube link.
- Move the mirror around the top of the fixed rock and onto the eastern ledge (6:54).
- Push the crystal south, then east around the bottom of the rock until it lines up below the mirror. Reflect it onto the upper part of the eastern ledge (6:59).
- Shift the mirror right. Use reflection again to place the crystal on the ledge’s lower row, facing the water gap (7:01).
- Stand to the crystal’s left and push it right into the gap (7:02). Cross it and walk down to the exit (7:04).
Sources for this section
- Joric: Mirror Isles: 23 demo puzzle solutions · Checked 2026-09-13 · Published 2026-06-17
Research checked 2026-09-13. This is a source-based guide; Kingy has not independently play-tested these steps in the native game. Evidence and coverage.