📈 VALUE
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HOW GEMEPIC CHECKS ITS GAME DATA

Every game page has a Page Check meter, from light to deep blue. It shows how sure GemEPIC is that the page is correct, worked out from the evidence behind each fact. Anyone can help push a page to verified.

WHERE THE PAGES STAND

HELP ADD MORE · 22,301

Under 75: the game, its system and its date are there; more facts are welcome, or a source disagrees. This is where your help counts most.

WELL SOURCED · 99,874

75 or more. The facts shown come from good sources; the game hasn't had its one-by-one check yet, or has a gap or two to fill.

✔ VERIFIED · 29,096

Checked one game at a time by the GemEPIC team: that it came out on that system, its dates, who made it and what kind of game it is, each against its sources. Every series checked this way joins the list.

HOW THE SCORE WORKS

Each part of a page has a weight (how much it matters) and a strength (how good its evidence is).

40 The game is on this system
15 The year on this system
12 Physical / digital
8 Developer and publisher
8 The description
7 The cover picture
5 Types of game
+5 Editions with a source (a bonus)

HOW STRONG IS THE EVIDENCE?

Each fact gets one of three strengths:

ConfirmedChecked by a person or by GemEPIC's full check, shown in a player's photo of their copy, backed by two independent sources that agree, or confirmed by GemEPIC's own quality check. One good sourceA Wikipedia article, IGDB, or a shop's own product data. WeakA single less reliable source, such as a date from a Wikipedia list or a year carried over from another system.

If GemEPIC's checks find a problem with a page, its score drops until the problem is fixed.

The strengths come from measuring how often each source was wrong in random spot checks (300 pages, October 2026): Wikipedia's article box 3%, IGDB 8%, Wikipedia's per-system lists 14% for dates. We measure again after each big round of fixes.

HOW YOU CAN HELP

Spot something wrong on a game page? Tap ⚑ Spot a mistake? under its picture and tell the moderators what it should say (a source helps).

Own the game? Adding your copy with a photo confirms it came out on that system, and gives the page its picture. A fact a person on the team already checked is never overwritten: if your source says something else, the team compares them.

PAGES THAT NEED A HAND

Pinball Dreams · Game Boy · 72
needs: year, credits
Jake Power: Fireman · Nintendo DS · 64
needs: is it on this system?, cover, year
Hyper Sentinel · Nintendo Switch · 73
needs: description, boxed or download
Mary Skelter 2 · Nintendo Switch · 74
needs: year, description
Star Hunter DX & Space Moth: Lunar Edition · Nintendo Switch · 63
needs: year, description, cover
Metal Dragon & Life on Mars · Evercade · 73
needs: description, cover, year
Piko Interactive Arcade 1 · Evercade · 74
needs: description, cover, year
Piko Interactive Collection 2 · Evercade · 64
needs: description, cover, year
Breakaway IV · Atari 2600 · 73
needs: description, cover, year
Busy Police · Atari 2600 · 43
needs: is it on this system?, year, description
Dragon Treasure · Atari 2600 · 69
needs: description, cover, year
Escape From Mars · Atari 2600 · 73
needs: description, cover, year
Farmer Dan · Atari 2600 · 74
needs: description, cover, year
Laser Volley · Atari 2600 · 73
needs: description, cover, year
Memory Match · Atari 2600 · 73
needs: description, cover, year
Space Adventure · Atari 2600 · 52
needs: is it on this system?, description, cover
ZARKSTARS · Atari 2600 · 69
needs: description, cover, year
Arcade Classic No. 2: Centipede / Millipede · Game Boy · 57
needs: is it on this system?, description, cover
Gun Ship DX · Game Boy · 55
needs: description, cover, kinds
Klax / Marble Madness · Game Boy Advance · 74
needs: description, cover, year
Paperboy / Rampage · Game Boy Advance · 67
needs: description, cover, year
Indestructotank · Game Boy Color · 45
needs: is it on this system?, year, description
Hollywood Crimes 3D · Nintendo 3DS · 51
needs: is it on this system?, description, cover
Puzzler 3D World 2012 · Nintendo 3DS · 67
needs: description, cover, year
📖 COLLECTOR'S GLOSSARY
The full glossary → · Help: how do I…? →