任天堂後來沒有與Sony繼續合作開發主機，主要原因在於其在合作開發CD-ROM主機（即Nintendo PlayStation）的關鍵時刻單方面違約，選擇與飛利浦（Philips）合作。這一決定激怒Sony，使其決定自行開發遊戲機，最終催生PlayStation（PS），從而徹底改變遊戲產業的歷史。任天堂此舉的初衷，是為了避免Sony完全掌握光碟遊戲的版權與相關利潤，保護自身對遊戲內容的控制權。

合作破裂的關鍵事件始於1991年美國CES展。當時，任天堂公開宣布與飛利浦合作開發CD-ROM外接裝置，同時提出條件允許Sony繼續研發主機，但必須放棄CD遊戲的版權。這一決定讓原本投入多年努力的Sony工程師團隊感到被背叛，也揭示任天堂在版權問題上的深層顧慮。當時任天堂社長山內溥意識到，早期合約中授予Sony CD遊戲版權的條款，可能使任天堂失去對遊戲內容的掌控，因此選擇尋找新的合作夥伴，以保障自身利益。

失去任天堂合作後，Sony迅速做出戰略轉變。他們將原本為任天堂開發的技術轉化為自有產品，成立索尼電腦娛樂（SCE），並在1994年推出PlayStation，成功引領3D光碟遊戲時代，奠定其在主機市場的核心地位。這一歷史轉折也吸引包括《Final Fantasy VII》等大型遊戲轉投PlayStation平台，進一步鞏固Sony在遊戲界的影響力。

總體而言，任天堂的臨時變卦以及對版權的堅持，雖然讓原本的合作破局，但也間接促成PlayStation的誕生，開啟新世代遊戲主機的競爭格局，並改寫整個遊戲產業的歷史。

Nintendo ultimately did not continue its collaboration with Sony on console development, primarily because it unilaterally broke the partnership during the critical stages of developing the CD-ROM-based Nintendo PlayStation and instead chose to collaborate with Philips. This decision angered Sony, prompting the company to develop its own console, which ultimately led to the creation of the PlayStation (PS) and fundamentally changed the history of the gaming industry. Nintendo’s move was driven by a desire to prevent Sony from gaining full control over CD-based game rights and related profits, thereby protecting its authority over game content.

The key event that led to the collapse of the partnership occurred at the 1991 CES in the United States. At that time, Nintendo publicly announced its collaboration with Philips to develop a CD-ROM add-on while allowing Sony to continue console development only under the condition that Sony relinquish the CD game rights. This decision left Sony’s engineering team—who had invested years of effort—feeling betrayed and highlighted Nintendo’s deep concerns over game content rights. Then-president Hiroshi Yamauchi realized that the original contract granting Sony the CD game rights could result in Nintendo losing control over its own game content, prompting him to seek a new partner to safeguard the company’s interests.

After losing Nintendo’s cooperation, Sony quickly pivoted strategically. The company transformed the technology initially developed for Nintendo into its own product, established Sony Computer Entertainment (SCE), and launched the PlayStation in 1994. This move successfully ushered in the era of 3D CD-based gaming and cemented Sony’s central position in the console market. The shift also attracted major titles, including Final Fantasy VII, to the PlayStation platform, further solidifying Sony’s influence in the gaming industry.

In summary, Nintendo’s last-minute change of direction and insistence on retaining rights ended the original collaboration, but it indirectly led to the birth of the PlayStation. This event marked the beginning of the next generation of console competition and fundamentally reshaped the history of the gaming industry.