Platformer · Exploration
Crystal Caverns
Metroid-style cave explorer: find Dash Boots, Grapple Claw, and Dive Pearl to open sealed routes, chart map completion, gather 12 crystals, and reach the Core Gate.
The game's own interface may still be in English.
Overview
Crystal Caverns is an exploration platformer built around ability gates in one connected cave world. You are a lone surveyor dropped into the Echo Gallery with nothing but a helmet lamp, and the route to the planet's core is sealed three ways: cracked crumble walls that only a dash can shatter, vertical shafts lined with golden anchor rings that only a grapple can climb, and a flooded deep that scalds anyone who enters without the Dive Pearl. Each relic is placed so you must use the last one you found to reach the next, and the final Core Gate opens only when all three hum in your pack. Along the way, 12 glowing crystals and a live map-completion percentage reward thorough cavers who backtrack through old tunnels with new powers. Three hearts, knockback invulnerability, and wake-and-chase cave bats keep the danger honest, and your best score persists between runs.
How to Play
Press Start Game. Arrow Left and Right run; Arrow Up, Space, W, or Z jumps, with coyote time and jump buffering so ledge jumps feel forgiving. Once you own relics: X or Shift dashes in the facing direction and breaks crumble rock; J, C, or a click on the field fires the Grapple Claw at the nearest gold anchor above you, and pressing jump while hooked releases with a hop. In water, the Dive Pearl turns jumps into swim strokes. P pauses, R restarts. On touch devices, the pad gives you run, JUMP, DASH, and HOOK buttons. Reach the teal core at the far right of the final chamber to win; lose all three hearts and the run ends.
Tips & Strategy
Dash is a tool, not just a key: each dash has a short cooldown, so break crumble walls in one committed burst rather than feathering the button at the wall face. In the Anchor Shaft, look for the rhythm of the rings — each pull carries you about five tiles, and releasing with a jump at the apex converts claw speed into extra height that can skip an entire ring. The Flooded Deep is the only region where patience beats speed: without the pearl the water bounces you out with damage, so jump the island chain slowly, grab the pearl, and only then drop into the pool for the three underwater crystals. Bats wake at about ten tiles; bait each one into a wall of its own shaft before climbing. Finally, the map percentage counts chunks you have stood in, so if you finish under 100%, the missing chart is almost always the high gallery above the shaft — bring the claw back there.
What Makes It Distinct
Instead of locking doors with colored keys, Crystal Caverns locks them with verbs — dash, hook, dive — and then scores you on how much of the world those verbs reopen. The map-completion counter makes backtracking a first-class goal rather than filler between upgrades.
Controls
- Keyboard
- Arrow Left / Right — runArrow Up, Space, W, or Z — jump (coyote time and jump buffering included)X or Shift — dash once you own the Dash BootsJ or C — fire the Grapple Claw once you own it; jump releases with a hopP — pause or resumeR — restart the run
- Mouse
- Click Start Game to begin; clicking the field fires the Grapple Claw at the nearest anchor.
- Touch
- Use the arrow buttons to run, JUMP to jump or swim up, DASH for the boots, and HOOK for the claw.
Features
- One connected cave world with four themed regions: gallery, shaft, flooded deep, and core
- Three ability relics that gate progress: Dash Boots, Grapple Claw, Dive Pearl
- Cracked walls shatter under a dash, gold anchors catch the claw, deep water needs the pearl
- 12 hidden crystals and a live map-completion percentage
- Core Gate opens only when all three relics are found
- Cave bats, spike beds, and deep water as hazards; three hearts and knockback invulnerability
- Persistent local best score
Frequently asked questions
How do I get past the cracked brown wall near the start?
That wall is crumble rock. Pick up the Dash Boots on the pedestal in the Echo Gallery, then press X or Shift while running into the wall to shatter it tile by tile.
What does the Grapple Claw actually latch onto?
Only the golden ring anchors. Press J or click the field and the claw flies to the nearest anchor above you within range, then winches you up; press jump to let go with a small hop.
Why does the water keep hurting me?
Deep water burns until you own the Dive Pearl, which sits on a rock island in the Flooded Deep. Reach it by jumping the island chain from the dry left edge, then diving becomes safe and slow.
How is the map percentage calculated?
The cavern is divided into chunks, and each chunk you physically enter is charted. The HUD percentage is that charted count, so true 100% runs require revisiting every region with all three relics.