Crystal Quest — collect, escape, repeat
Runs here
1987 · Casady & Greene · System 7 · Mini vMac (Mac II) · 640×480 at 8-bit colour
Guide updated September 2026
Yes: Crystal Quest runs free in your browser on this page. Press Start and it boots System 7 on an emulated Mac II, with no download, no plugin and no account. Controls: Space (smart bomb, clearing the screen), Tab (pause). Your progress is saved in your own browser between visits.
Gather the crystals, then fly to the exit. Do it while an increasing number of things that want to kill you fill the screen and learn your habits. There is no more to it than that, and Crystal Quest was one of the most-played Macintosh games ever released.
It is controlled entirely with the mouse, which sounds like a compromise and is in fact the reason it feels so good.
Boots to the Crystal Quest title screen on an emulated Macintosh II. Click to continue, and move with the mouse — your ship goes where you point.
Controls
| Mouse | Fly. The ship follows the pointer directly. |
| Mouse button / any letter key | Fire, in the direction you are moving |
| Space | Smart bomb, clearing the screen |
| Tab | Pause |
| Cmd-S | Save the game in progress |
| 0–9 | Sound volume |
| Return | Skip the instructions at the title screen |
| D | Watch the demo |
| Cmd-Q | Quit to the Finder |
Casady & Greene closed in 2003. A Crystal Quest remake appeared on Xbox Live Arcade in 2007, made by other people; it is a different program. This Macintosh original has not been sold in over twenty years. Full reasoning is in notices/crystal-quest.md, and the takedown promise applies without argument.
Archives
- Internet Archive — the preserved Macintosh disk this copy came from.
- Macintosh Garden — other releases, Crystal Crazy, and documentation.
How it works & what to expect
| Machine | Macintosh II, 640×480 colour |
|---|---|
| System | System 7.5.3 |
| Emulator | Mini vMac, compiled to WebAssembly |
| Version | 2.2.5 |
| Saves | High scores live inside the emulated Mac, in your browser. |
Each wave drops a field of crystals and a set of enemies. Collect every crystal and the gate at the edge of the screen opens; fly through it and the next wave starts, harder.
The mouse control is absolute rather than relative — the ship is where the pointer is — so you can cross the screen instantly if your hand can move that fast. That is the skill ceiling, and it is high.
The nasties
Enemies arrive by type and each behaves differently, which is the whole strategic layer. Some drift. Some home in. Some sit still and shoot. Some split when you kill them, and killing them at the wrong moment is worse than leaving them alone.
Mines are the ones that get you. They do not chase — they simply sit in the path between you and the last crystal, and the game is very good at placing them where you were about to go.
Finish a wave fast enough and you get a time bonus; dawdle and the game tells you, with some satisfaction, that there is no time bonus. Bonus crystals turn up too, and the rules are blunt about them: catch them to get a bonus, shoot them to lose it. Playing for score and playing to survive are genuinely different games.
The voices
Crystal Quest talks. It congratulates you, it insults you when you die, and the sampled voices are the thing every person who played it remembers first.
Patrick Buckland wrote the game; Casady & Greene, a Mac-only publisher with an unusually good ear for what the platform's users wanted, published it. Buckland went on to co-found Stainless Software, the studio behind Carmageddon. Casady & Greene closed in 2003, a Macintosh software house that outlived nearly all the others and is now mostly remembered for this and for Conflict Catcher.
The sound files are still on the disk with their copyright notices in the filenames, which is a small and rather charming piece of 1994 housekeeping.
What the manual inside the game says
Crystal Quest carries its own instructions, and they are written in the same voice as the rest of it. The useful parts:
- Extra lives come every 15,000 points up to wave 11, every 40,000 up to wave 26, and every 75,000 after that. Past wave 26 each one is expensive, so play for survival there.
- Firing works with the mouse button or any letter key, and the shot always goes in the direction you are moving. To hit something, move towards it.
- The space bar sets off a smart bomb, if you have one. It kills everything on the screen. The manual compares it to using an anti-aircraft gun on a mosquito. Collect the spare smart bombs that turn up in later waves.
- Tab pauses. Command-S saves the game in progress. The number keys set the volume, from 0 (silent) to 9, and the manual says 8 sounds better than 9.
- Delete switches between one and two players before a game starts, for passing the mouse to a friend.
- Holding Option when you click to start puts a Mac II into super-fast mode. Scores set that way show in italics in the high-score table, so everyone can see how you got them.
The manual also has a note on Command-A, which ends the current game. It suggests using it on someone who is about to beat your high score.
Questions people ask
Is this the original Crystal Quest?
It is version 2.2.5, the Macintosh release by Casady & Greene. Not the 2007 Xbox Live Arcade remake, which is a different program by different people.
How do I control it?
With the mouse alone. The ship goes exactly where you point, and the button fires in whatever direction you are moving.
Does it use the keyboard at all?
For everything except flying. The mouse moves the ship, because absolute positioning is the point of the game. But the mouse button or any letter key fires, the space bar sets off a smart bomb, Tab pauses, and Command-S saves a game in progress.
How do I score well?
Clear waves fast for the time bonus, catch the bonus crystals rather than shooting them, and save smart bombs for the waves that go wrong. Extra lives come every 15,000 points early on, then less often, so survival matters more the further you get.
Does it really talk?
Yes. The sampled voices are the first thing most people remember about it, and the sound files are still sitting on the disk with their 1994 copyright notices in the filenames.
Are high scores kept?
Inside the emulated Mac, in your own browser. They survive closing the tab but not clearing site data.
Put Crystal Quest on your own site
Free, no permission needed and no account. Paste this where you want the machine to appear; it brings its own emulator and asks nothing of your page.
<iframe src="https://macemu.com/embed/crystal-quest/"
width="640" height="480"
style="border:0;max-width:100%"
allowfullscreen
title="Crystal Quest"></iframe>
<p><a href="https://macemu.com/run/crystal-quest/">Play Crystal Quest</a> free on macemu</p>Sized to this title's real screen. How embedding works.
