First Strike
The legendary soldier's first battle against the ancient alien invasion.
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This entry refers to the opening narrative arc of the Serious Sam franchise, officially titled **Serious Sam: The First Encounter**. While often colloquially described as the 'first strike' against the alien threat, canon records identify this campaign as the initial invasion by Mental. It establishes the core conflict between Sam Stone and the ancient entity seeking to conquer Earth.
- Protagonist
- Sam 'Stone' Stone
- Antagonist
- Mental
- Developer
- Croteam
- Official Title
- Serious Sam: The First Encounter
- Setting
- Egyptian Pyramids and Desert
- Engine
- Serious Engine
Lore & Background
The narrative emphasizes the overwhelming scale of the invasion compared to human military capabilities. Sam operates largely alone or with minimal support during this initial phase, relying on his combat skills and heavy weaponry. The lore establishes that Mental's forces are drawn from across time and space, setting up the temporal mechanics explored in later entries.
In Their Own Story
The sun beats down on the sandstone ruins as dust swirls around Sam's boots. He checks the chamber of his shotgun, the metallic click echoing against the ancient walls. Portals shimmer in the distance, spitting out chittering horrors that scuttle toward him. There is no time for fear; only the rhythm of fire and reload remains.
Reader's Guide
The campaign begins with Sam Stone arriving at an archaeological site in Egypt to investigate strange disturbances. He quickly discovers that these are not natural phenomena but portals opened by Mental's forces. Sam must navigate through desert ruins, underground tombs, and open battlefields while fighting off waves of alien creatures. The objective is to reach the pyramid where Mental's main base of operations lies. Throughout the journey, Sam utilizes a variety of weapons to manage different enemy types. The campaign concludes with a confrontation that halts the initial invasion, though it leaves the threat unresolved for future conflicts.
Did You Know?
- The official title of the campaign is 'Serious Sam: The First Encounter'.
- The protagonist is Sam 'Stone' Stone.
- The antagonist is Mental.
- The setting includes Egyptian Pyramids and Desert.
- The game was developed by Croteam using the Serious Engine.
Gallery




Frequently Asked Questions
What is the official name of this campaign?
The story arc frequently referred to as First Strike is officially released under the title Serious Sam: The First Encounter. This game introduces players to the initial invasion orchestrated by the alien entity Mental.
Who is the primary antagonist in this narrative?
The main villain is Mental, an ancient cosmic being who commands a vast army of monsters. His goal is to conquer Earth, forcing Sam Stone into a desperate defense across Egypt.
What locations feature prominently in the campaign setting?
The action unfolds primarily within the Egyptian desert and various pyramid complexes. These historic sites serve as the battleground for humanity's first major engagement against the alien threat.
Who is the protagonist leading the resistance?
Players take control of Sam Stone, a rugged soldier known for his resilience and firepower. He stands alone as the primary obstacle preventing Mental from successfully invading the planet.
Why is this entry significant to the franchise timeline?
This campaign establishes the foundational conflict between Sam and Mental that defines the entire series. It chronicles the very first battle humanity wages against the extraterrestrial invasion force.
More in Story & Campaigns
Elsewhere in the Serious Sam universe
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