The Resident Evil series consists of the following mainline games:

• Resident Evil - 3.88 (PS) & 1.35 (GC) & 1.2 (DualShock Ed.) = 6.43 million
• Resident Evil 2 - 4.96 million
• Resident Evil 3: Nemesis - 3.5 million
• Resident Evil - Code: Veronica - 1.4 (PS2) & 1.14 (DC) = 2.54 million
• Resident Evil 4 - 2.3 (PS2) & 1.6 (GC) & 2.0 (Wii) & 1.7 (PS4/XO) & 1.1 (PC) = 8.7 million
• Resident Evil 5 - 7.6 (PS3/360) & 2.3 (Gold Ed.) & 1.7 (PS4/XO) = 11.6 million
• Resident Evil 6 - 7.5 (PS3/360) & 2.0 (PS4/XO) = 9.5 million
• Resident Evil 7: Biohazard - 7.5 million

As well as a number of remakes of the above titles, including:

• Resident Evil - 2.6 million
• Resident Evil 2 - 6.6 million
• Resident Evil 3 - 2.7 million

There are also several spin-off franchises. These are:

• Survivor (Survivor, Survivor 2 - Code: Veronica & Dead Aim)
• Outbreak (Outbreak & Outbreak: File #2)
• Chronicles (The Umbrella Chronicles & The Darkside Chronicles)
• Revelations (Revelations & Revelations 2)

And finally there are a handful of stand-alone spin-off titles:

• Resident Evil Gaiden
• Resident Evil: The Mercenarie3D
• Resident Evil: Operation Raccoon City
• Umbrella Corps