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Collection: SEGA Master System

The Master System is an 8-bit home video game console manufactured and developed by Sega. It was originally a remodeled export version of the Sega Mark III, the third iteration of the SG-1000 series of consoles and was released in North America in 1986. It was and is a glorious system!

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Rondo Products Multi-Con II Set

Rondo Products Multi-Con II Set

Regular price From $17.99 USD

Sale price From $17.99 USD
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Rondo Products Multi-Con II

Rondo Products Multi-Con II

Regular price $6.99 USD

Sale price $6.99 USD
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Rondo Products PowerBase Mini

Rondo Products PowerBase Mini

Regular price $49.99 USD

Sale price $49.99 USD
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Rondo Products PowerBase Mini FM

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Rondo Products PowerBase Mini FM

Regular price $69.99 USD

Sale price $69.99 USD
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Rondo Products MS2GG SMS Master System Adapter for the Game Gear

Sale

Rondo Products MS2GG SMS Master System Adapter for the Game Gear

Regular price $64.99 USD

Regular price ~~$79.99 USD~~ Sale price $64.99 USD
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Sega Master System/Genesis Model 1(MONO AUDIO ONLY): RGB SCART Cable

Sega Master System/Genesis Model 1(MONO AUDIO ONLY): RGB SCART Cable

Regular price $27.99 USD

Sale price $27.99 USD
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RetroN 5 3in1 Adapter

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RetroN 5 3in1 Adapter

Regular price $49.99 USD

Regular price ~~$59.99 USD~~ Sale price $49.99 USD
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Welcome to the Castle!

Founded by lifelong gamers and collectors, it is our mission is to help you bring your favorite retro consoles out of the closet and attic (don't keep your games in the attic) and deliver modern quality of life improvements where we can.

Unlike generic marketplaces and mega-retailers, CastleMania is proudly boutique. Every product is hand-picked. Every order matters. And every customer is part of a growing community of gamers who know that authenticity, performance, and a little passion goes a long way.

We’re also trusted by the brands that make the best products in the business. CastleMania Games is an authorized retailer for HD Retrovision, EON, Retro-Bit, Retro-Time Hyperkin and more. Our catalog is packed with solutions you can count on, and our support team is made up of real people who speak your language: scanlines, RGB mods, and CRT vs HDMI debates included.

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