Ubisoft and Vivendi Games will not have a number of key titles available for the European launch of the PlayStation 3.
Ubisoft's Splinter Cell: Double Agent is due a week after launch, while award-winning Bethesda RPG Elder Scrolls IV: Oblivion won't be released until April 27.
Ghost Recon Advanced Warfighter 2, currently at number two in the UK's All Formats charts, has been put back until June, while a spring date is mooted for Rainbow Six: Vegas.
All titles are currently available for Microsoft's rival Xbox 360 console.
With these popular franchises missing from the day one launch, Ubisoft is left with only Blazing Angels: Squadrons of WWII and Enchanted Arms for the first weekend of sales of Sony's next-gen machine.
Vivendi Games has also put back the release of the PlayStation 3 version of F.E.A.R. The game has already enjoyed critical and commercial success on the PC and Xbox 360, but will not arrive for PS3 in Europe until April 20.