Who made it, why it exists, and what it is built from.
Trampoline Hop is a free browser game about bouncing up a tower of trampolines that never ends. It opens on a link, it works on a phone, and it does not need an app store, an account or an email address before you can play.
It started as a game for my own children. They are the reason it plays portrait, one thumb, in short runs: that is how a game actually gets played in the back of a car on the way to football. Most of the bugs that have been fixed were reported by them, loudly, at the kitchen table. The daily challenge was rebuilt from scratch because my son worked out that the same mission kept coming up and told me the feature was broken. He was right.
No adverts run in the game today. When they do they will be optional and rewarded, so you can choose to watch one to carry on after a crash or to double the coins from a run, and if you never touch it you lose nothing. There will be no advert you cannot skip and no part of the game locked behind watching one.
Because it is a game for children, adverts will be set up so they are not personalised and no advertising profile is built about a player.
It stays on the web rather than going to an app store. On the stores a children's game lands in a restricted category with a human reviewer between every fix and the player. A change made here is live within the hour, which matters more for a game maintained by one person than store discovery does.
| Part | What it is |
|---|---|
| The game | One HTML file. No engine, no framework, everything drawn to a canvas. |
| Hosting | Cloudflare Pages, served from wherever you happen to be. |
| Racing | A separate small server holding one room per race, which settles anything two players both claim. |
| Offline | A service worker keeps the game on your device after the first visit. |
The simulation runs on a fixed clock rather than on frames, so a slow phone plays the same game as a fast one. It only ever runs slower to watch, never easier.
Sam Olliver, a sole trader in the United Kingdom. The same person answers the email address at the bottom of every page on this site.
Bug reports are welcome and useful, particularly if you can say which phone and which zone. If a nickname on a scoreboard is a real name and should not be, say so and it comes off the same day.