How to play Spacebar Clicker
- Press Space (or tap the planet) to earn ⭐ stars.
- Buy upgrades from the list. They get more expensive each time you buy one.
- Press upgrades (Stronger thumb, Astronaut gloves) add stars to every press.
- Automatic upgrades (Booster rocket, Satellite, Space station, Star factory) earn stars every second, even while you don’t press.
- The Galaxy engine doubles everything. It’s expensive, but each one is a huge jump.
Upgrades
| Upgrade | Effect |
|---|---|
| 👍 Stronger thumb | +1 star per press |
| 🚀 Booster rocket | +1 star per second |
| 🛰️ Satellite | +6 stars per second |
| 🧤 Astronaut gloves | +10 stars per press |
| 🏗️ Space station | +40 stars per second |
| 🏭 Star factory | +250 stars per second |
| 🌌 Galaxy engine | Doubles all stars per press and per second |
Strategy tips
- Early game: mash Space and buy 3–5 Stronger thumbs, then your first rockets.
- Compare value: divide an upgrade’s cost by the stars per second it adds. The lowest number pays for itself fastest.
- Mid game: automatic upgrades take over. Your presses become a bonus, not the main income.
- Save up for the Galaxy engine once your income is steady. Doubling everything beats a handful of small upgrades.
Want to test speed instead?
This is an idle game, so speed helps early but upgrades win in the long run. To measure how fast you can actually press the space bar, use the spacebar counter. For a pure click-speed challenge, play the CPS game.
Frequently asked questions
Does my progress save?
Yes. Your stars and upgrades are saved in your browser every few seconds and when you leave the page. Clearing site data resets them.
Do I earn stars when I'm not playing?
Yes. Your automatic upgrades keep earning at half speed for up to 2 hours while you're away.
Can I play on a phone?
Yes. Tap the planet instead of pressing Space.
Is there a best order to buy upgrades?
Early on, a few Stronger thumbs and Booster rockets pay back fastest. After that, buy whichever upgrade gives the most stars per second for its price.
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