
Back 4 Blood is an intense cooperative first-person shooter developed by the team behind the highly praised Left 4 Dead series. You find yourself in the midst of a battle for survival against the Ridden—former humans now twisted by a deadly parasite into monstrous beings determined to destroy what's left of society. With the future of humanity hanging in the balance, you and your squad must confront the enemy head-on, eliminate the Ridden, and fight to restore the world.
Survive in a constantly shifting, dangerous world with a 4-player cooperative story campaign where teamwork is essential to overcome increasingly difficult missions. Team up with up to 3 friends online or take the lead and command your squad in battle. Select from 8 unique Cleaners, each an immune survivor, and equip a variety of deadly weapons and gear. Coordinate strategies against a relentless enemy force determined to wipe you out. Compete with or against friends in PVP mode. Alternate between playing as a Cleaner with special advantages or as the terrifying Ridden. Each faction has exclusive weapons, skills, and roles. A brand-new "rogue-lite" Card System ensures every playthrough is different, letting you build custom decks, roll unique character builds, and face tougher challenges. The Game Director adapts to your actions, delivering thrilling combat, high replayability, and waves of Ridden enemies—some mutated bosses towering up to 20 feet tall.

| Audio | Subtitles | Interface | |
|---|---|---|---|
| العربية | ✓ | ||
| 简体中文 | ✓ | ||
| 繁體中文 | ✓ | ||
| English (US) | ✓ | ✓ | |
| Français | ✓ | ✓ | |
| Deutsch | ✓ | ✓ | |
| Italiano | ✓ | ✓ | |
| 日本語 | ✓ | ||
| 한국어 | ✓ | ||
| Polski | ✓ | ||
| Português (Brasil) | ✓ | ✓ | |
| Русский | ✓ | ||
| Español (Mexico) | ✓ | ✓ | |
| Español (España) | ✓ | ✓ | |
| Türkçe | ✓ |