Thin Chen Enterprise (full name Sheng Qian Enterprise Co., Ltd ()), also known as Sachen, was a Taiwanese company that published several original games for the Nintendo Entertainment System, Mega Drive, Game Boy and other early cartridge-based handheld systems such as the Watara Supervision and Mega Duck. With the exception of the latter two handhelds, all of Thin Chen's games were produced without license from the console manufacturers. The company produced at least 70 unique games for the NES and Famicom and at least 32 for the Game Boy (compiled into eight 4-in-1 cartridges), making it the most prolific unlicensed publisher for both consoles. The company also produced its own Nintendo Entertainment System hardware clones, such as the Q-Boy. Many of its games were released in an unfinished state, and received largely negative critical response.
Most of Thin Chen's products were released under the "Sachen" brand name, although the name Commin was also used for games on handheld consoles. Several of their NES games were released outside Taiwan under license by foreign publishers, including: HES Interactive in Australia, Hacker International in Japan (usually with added pornographic content), Bunch Games/Color Dreams and American Video Entertainment in the United States, and Milmar in Brazil. || 1) 未来小子, Wèilái Xiǎozi<br />2) Metal Fighter || 1989 || Also known as Space Boy.
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| 9 || TC-009 || Incantation || 1) 蝶變, Diébiàn<br />2) Galactic Crusader || 1989 ||
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| 10 || TC-010 || Mahjong Trap || 四川麻將, Sìchuān Májiàng || 1989 || 1) Published in Japan by Hacker International as Shisen Mahjong: Seifuku Hen in 1990.<br />2) Contains nudity.
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Multi-game cartridges
{| class="wikitable sortable"
|-
! scope="col" | #
! scope="col" | Title
! scope="col" | Original release
! scope="col" | Notes
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| 1 || Funblaster Pak || 1990 || 1) Contains: Metal Fighter, Twin Eagle, Little Red Hood, and Pipe V (credited as Pipemania).<br />2) Published by HES Interactive.
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| 2 || Mindblower Pak || 1990 || 1) Contains: Galactic Crusader, Arctic Adventure, Magical Mathematics (credited as Math Quiz), and Shuǐguǒ Lí (credited as Jackpot).<br />2) Published by HES Interactive.<br />3) The game Shuǐguǒ Lí, is the only game on the list which is not released by Sachen.
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| 3 || Super Cartridge Version 1: 4-in-1 || Unknown || Contains: Bingo 75, Lucky Bingo, Honey Peach, and Chess Academy.
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| 4 || Super Cartridge Version 2: 10-in-1 || Unknown || 1) Contains Hidden Chinese Chess, Omnibus Hearts, Fan Tan, Chinese Rummy, Max 2, Ghost Buster, 99, Change Around, Fortune Telling (Chinese), and Fortune Telling (English).<br />2) All games appear on The World of Card Games and Poker II except the two versions of Fortune Telling.
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| 5 || Super Cartridge Version 3: 8-in-1 || Unknown || 1) Contains: Jovial Race, Little Red Hood, Twin Eagle, Silent Assault, Super Pang, Mine Sweeper, Mine Sweeper II, and Mine Sweeper III.<br />2) The three versions of Mine Sweeper were only released on this cartridge.
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| 6 || Super Cartridge Version 4: 6-in-1 || Unknown || Contains: Master Chu and the Drunkard Hu, Metal Fighter, Galactic Crusader, Auto-Upturn, Magic Cube, and Super Pang II.
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| 7 || Super Cartridge Version 5: 7-in-1 || Unknown || Contains: The Penguin & Seal, Middle School English, Pyramid, Magical Mathematics, Strategist, Olympic I.Q., and Chinese Checkers.
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| 8 || Super Cartridge Version 6: 6-in-1 || Unknown || Contains: Colorful Dragon, Pyramid II, Pipe V, Millionaire, Dancing Block, and Locksmith.
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| 9 || Super Cartridge Version 7: 4-in-1 || Unknown || Contains: Sidewinder, Happy Pairs, Tasac, and Silver Eagle.
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| 10 || Super Cartridge Version 8: 4-in-1 || Unknown || 1) Contains: Final Combat, Worm Visitor, Frog Adventure, and Magical Tower.<br />2) All games bar Final Combat were ported from the Game Boy exclusively for this cartridge.
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| 11 || Super Cartridge Version 9: 3-in-1 || Unknown || Contains: Challenge of the Dragon, Rockball, and PoPo Team.
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Note: All series of Super Cartridge Version, was developed and released as Thin Chen Enterprise.
Others
- Mystical Muppet Mahjong [AKA Ti Xian Muou Majiang] — A port of Tel-Tel Mahjong.
- --Unknown-- — A TC-031 numbered series game.
Unreleased
- Bridge
- Twin Ball
Game Boy/Game Boy Color
List of titles as Sachen
{| class="wikitable sortable"
|-
! scope="col" | #
! scope="col" | Title
! scope="col" | Original release
! scope="col" | Game Boy
! scope="col" | GB Color
! scope="col" | Notes
|-
| 1 || 2nd Space || 1993 || || ||
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| 2 || Ant Soldiers || 1993 || || ||
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| 3 || Black Forest Tale || 1993 || || ||
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| 4 || Dan Laser || 1993 || || ||
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| 5 || Magical Tower || 1993 || || ||
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| 6 || Railway || 1993 || || ||
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| 7 || Sky Ace || 1993 || || ||
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| 8 || Worm Visitor || 1993 || || ||
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| 9 || Zipball || 1993 || || ||
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| 10 || Zoo Block || 1993 || || ||
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| 11 || Crazy Burger || 1994 || || ||
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| 12 || Explosive Brick '94 || 1994 || || ||
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| 13 || Captain Knick-Knack || 1999 || || ||
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| 14 || Dice Square || 1999 || || ||
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| 15 || Electron World || 1999 || || ||
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| 16 || Jurassic Boy 2 || 1999 || || ||
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| 17 || Rocman X Gold || 1999 || || || An alternate version of Thunder Blast Man.
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| 18 || Snake Roy || 1999 || || ||
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| 19 || Thunder Blast Man || 1999 || || || Also known as Rocman X on title screen. Although they are essentially the same game, it is worth noting that the characters in the game from Thunder Blaster Man and Rocman X are completely different, the first being the original Sachen creation from the NES version, and the second being a clone of Megaman.
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| 20 || Trouble Zone || 1999 || || ||
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| 21 || Virus Attack || 1999 || || ||
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| 22 || Beast Fighter || 2000 || || ||
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| 23 || Gedou Zhanlue 2002 || 2002 || || || An RPG and strategy game with elements of The King of Fighters.
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| 24 || Street Heroes || Unknown || || || Credited as Street Hero on the package.
|}
List of titles as Commin
{| class="wikitable sortable"
|-
! scope="col" | #
! scope="col" | Title
! scope="col" | Original release