Our main advantage
Most claims on this site are about games we built. That puts us in an unusual position: instead of inferring how something works from playing it, we can read the code. Every mechanical figure published here is checked against the configuration it comes from.
Concretely, that means when a page says a combo window is 2.2 seconds, someone has looked at the game's scoring configuration and confirmed the value. When a page says the procedural generator caps gaps at 62 percent of jump distance, someone has confirmed that constant in the generator.
Claim types and how each is handled
Game mechanics
Verified against source code before publication and re-verified when the game is changed. These are the strongest claims on the site and should be treated as reliable.
Game design concepts
Techniques like coyote time, jump buffering, variable jump height and object pooling are established practice across the industry. We describe how we implement them and what they do, and we do not attribute their invention to anyone without evidence.
Browser technology
Claims about the Canvas API, Web Audio, LocalStorage, device pixel ratio and similar are checked against the current published web standards and against actual behaviour in current versions of Chrome, Firefox, Edge and Safari. Where behaviour differs between browsers, we say so rather than describing one browser's behaviour as universal.
Judgements about feel
Statements like "this jump feels responsive" or "this is the most approachable game here" are opinions informed by building and playing the games. We phrase them as judgements rather than as facts, and we try to give the reasoning so you can disagree with it.
Anything about the real world
We largely do not make claims about the real world, and that is deliberate. We do not publish statistics about the games industry, player demographics, market size or behavioural research, because we are not in a position to verify them and repeating unverified figures is how misinformation spreads.
The coin distinction
This is the single most important boundary on this site. The word "coin" means two entirely different things in different contexts, and conflating them would be genuinely misleading.
On this site, a coin is always a virtual in-game collectible with a point value and no monetary value. We never present in-game coins as currency, never suggest they can be exchanged for anything, and never mix game content with information about real-world currency, coin collecting as a hobby, coin valuation, numismatics or cryptocurrency.
We do not publish financial information of any kind, and nothing on this site should be read as financial advice.
Sources
Where an article needs an external reference, we link to primary sources — the relevant web standard, the browser vendor's own documentation, or the specification itself. We do not cite sources we have not read, and we do not invent citations to make an article look authoritative.
If an article makes a claim with no source and no code reference, treat it as a judgement rather than a fact. We try to make that distinction clear in the writing.
Review cycle
Guides are reviewed when the games they describe change, and in any case periodically. The "last reviewed" or "updated" date on each page reflects the last substantive review, not the last time a character was edited.
Reporting an error
Email hello@coincollectorarcade.xyz with the page and the specific claim. You do not need to explain why it is wrong, though it helps. We investigate every report.
Material corrections are noted on the corrected page. Minor fixes are made without a note. We do not quietly delete pages to avoid correcting them.
Last reviewed: .