Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 4682990 |
| Live current players | 0 |
| SteamPulse tracked peak | 0 |
| Live count (today's peak floor) | 0 |
| Price | No longer available on Steam Store |
| Free to play | No current Steam offer |
| Discount | Not available |
| Original price USD | Not available |
| Current price USD | Not available |
| Release date | Oct 26, 2026 |
| Developer | Double Blue |
| Publisher | Double Blue |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | Not available |
| SteamSpy owner estimate maximum | Not available |
| Review type | No user reviews |
| Positive review percent | Not available |
| Positive reviews | 0 |
| Negative reviews | 0 |
| Total reviews | 0 |
| Steam recommendations | Not available |
| Achievements | Not available |
| Average playtime forever | Not available |
| Windows support | Yes |
| macOS support | No |
| Linux support | Yes |
| Parent game | Not available |
| Store URL | Not available on Steam Store |
Short description
A hardcore pressure puzzle about matching runes under interference. Read layered boards, avoid moving Guardian Echoes, and survive a 20-floor dark-fantasy run where every careless click matters.
About this game
Rune Caves: Eternal Echo is a hardcore pair-matching pressure puzzle set inside a dark cave of living runes. You clear the board by matching two runes with the same identity — but the cave keeps adding pressure. Pair the runes. Read the layers. Survive the Echoes. Read the Layers Each floor is built as a stacked rune board. Higher runes block lower runes, and some visible pieces may remain locked until another pair is cleared. To survive, you must read the board before you click. Survive the Guardian Echoes Guardian Echoes move across the same screen as the rune board. They are not decorations. They distract your eyes, intercept careless clicks, and create a second matching layer with its own rules. Runes match runes. Echoes match Echoes. Mixing the two costs you a mistake. Memory, Timing, and Pressure As you descend, the cave introduces new forms of pressure: face-down runes that test memory; blinking runes that test timing; ambush pairs that reveal new pieces after specific clears; limited mistakes on every floor; late-game countdown pressure. One Run. Twenty Floors. The campaign is a 20-floor pressure run. A single loss ends the run. Clear the campaign to unlock Endless Mode and push deeper into the cave. Built for Puzzle Players Who Want Friction Rune Caves is for players who enjoy compact, readable puzzle systems with real pressure: board-reading; sequencing; precise clicking; controlled risk; replayable runs; dark-fantasy atmosphere.
Supported languages
English, French, German, Spanish - Spain, Japanese, Korean, Russian, Simplified Chinese, Traditional Chinese