Some retro game cartridges are not what they seem. Counterfeits and reproductions are now a big issue for consoles like SNES, N64, GBA, and Game Boy Color, and spotting them is getting tougher. Here are five resources to help you protect yourself and your collection.
Common Signs of a Counterfeit Retro Video Game Cartridge
| Platform | What to Check | Common Warning Signs |
| Super Nintendo | Shell imprints, screws, label fonts, and circuit-board markings | Stamped label, wonky screws, or incorrect board markings |
| Nintendo 64 | Cartridge weight, screws, label quality, and the internal board | A lighter shell, typo in seal of quality, or missing Nintendo branding on the circuit board |
| Game Boy Advance | Label imprints, board markings, chips, and battery placement | Missing label-stamped numbers, color of shell, or internal board variations |
| Game Boy Color | Label finish, print quality, shell condition, and internal board | No internal Board serial numbers, no save battery, color of shell |
| Nintendo Switch | Front and back serial numbers, model markings, and manufacturing details | Serial numbers that do not match, missing markings |
These warning signs are a good place to start, but no single detail can confirm if a cartridge is fake. Shells, labels, and circuit boards often change between production runs. If you are unsure, check several details and look at the internal board before buying.
1. The Old School Game Vault’s Counterfeit Detection Library
The Old School Game Vault stands out for its hands-on approach, which has inspected thousands of collections and authenticates every item before purchase, an experience that gives its Counterfeit Detection Library unique authority. The library focuses on the platforms where fake games are most common:
- SNES: Check shell imprints, screw quality, label fonts, and PCB markings. Authentic shells often have molded imprints like E-27 and B-43 stamped inside. One warning sign is if these markings are missing or look off.
- N64: Fake shells commonly run lighter than real ones, screws may look cheap or uneven, and the word “Nintendo” stamped on the board is often missing on counterfeits. N64 is the platform where The Old School Game Vault sees the most fakes coming through the door.
- GBA / Pokémon: Real GBA cartridges typically have imprinted numbers on the front label, and some versions include an MX chip on the circuit board, details that are often missing or incorrectly replicated on counterfeits. Pokémon Emerald, Ruby, and Sapphire fakes may replace the CR1616 battery with a black epoxy blob.
- Game Boy Color: Fake labels often look too new or perfect for a 25-year-old game, with a silvery edge and slightly off gold print around the Nintendo seal. The Pokémon Crystal walkthrough is a good place to start.
- Nintendo Switch: Check front and back serial numbers and look for the HAC-008 and CC imprint on the back. A model number starting with KYOTO is a strong indicator of a display cartridge being sold as real.
For collectors who prefer video, The Old School Game Vault YouTube channel covers the same platforms with side-by-side comparisons of real and fake cartridges, including internal board inspection. The tactile tells that are hard to convey in writing, like the weight difference between a fake and real N64 shell, come through clearly on video.
Few resources combine this level of platform depth with nearly two decades of hands-on buying experience. The remaining four entries below offer additional perspectives plus practical tools for authenticating your games.
2. Nintendo Life: How to Spot Fake Nintendo Video Games
Nintendo Life focuses on everything Nintendo. Their guide to spotting fake games covers DS, GBA, SNES, and N64, and includes side-by-side photos to help you see the differences. They also suggest holding a light up to the back of a Nintendo DS game to check if it’s real, which is a helpful tip.
3. Metal Jesus Rocks: Spot Fake Nintendo Games
Metal Jesus Rocks is a well-known YouTube channel about retro game collecting and has been around for over 10 years. In this video, Kelsey from Pink Gorilla Games in Seattle talks about her experience with fake and reproduction Nintendo cartridges. The video shows the most common signs to look for across Nintendo platforms and is perfect for visual learners who want to see the differences for themselves.
4. r/gameverifying
If you want real-time help from other collectors, r/gameverifying is the most active community. If you are unsure about a game, you can post a photo of your cartridge and usually get a reply from someone in just a few minutes.
5. PriceCharting
PriceCharting is a favorite site for many retro gamers. It lists real-time prices for thousands of retro games. Before buying any retro game, check PriceCharting to see what real copies are selling for. If a price seems too good to be true, it probably is. Fakes and reproductions are usually much cheaper than real ones, so knowing the typical prices for loose, complete, and graded games can help you spot warning signs quickly.