
Serious Sam HD: The First Encounter is a visually enhanced remake of the original fast-paced single-player and 16-player cooperative arcade-style FPS, now fully supported on Steam.
Long ago, Earth was at the center of a colossal war between Mental, a malevolent alien entity seeking to dominate the cosmos, and the Sirians, a highly advanced alien civilization that left behind numerous relics for humanity to uncover. In the 22nd century, Mental and his horde of monstrous creatures return to Earth with the intent of eradicating humankind. Overwhelmed, humans are pushed to the brink and forced back to their last defenses. In a desperate bid for survival, humanity activates the "Time-Lock," an enigmatic Sirian device capable of sending one individual back through time to a specific moment. Due to his courageous stand against the creatures, Sam "Serious" Stone is selected to wield the Time-Lock, with the hope that he can stop Mental and alter the fate of the world.
| PC | November 24, 2009 |
| X360 | January 13, 2010 |

| Audio | Subtitles | Interface | |
|---|---|---|---|
| English (US) | ✓ | ||
| Français | ✓ | ||
| Deutsch | ✓ | ||
| Italiano | ✓ | ||
| Русский | ✓ | ||
| Español (España) | ✓ |