The game is very fun and adds onto the story of the Half-Life Universe, making the story even more interesting for fans. The game runs on the same engine Half Life was created on, and adds a new perspective on the Resonance Cascade at the Black Mesa Research Facility. I suggest you play Half-Life first, then play Blue Shift, then play Opposing Forces and you get three perspectives on the incident that created the story and universe of Half-Life. I love Half Life and its Expansion packs, it adds so much to the story and is super fun to play in your spare time.

The game is very fun and adds onto the story of the Half-Life Universe, making the story even more interesting for fans. The game runs on the same engine Half Life was created on, and adds a new perspective on the Resonance Cascade at the Black Mesa Research Facility. I suggest you play Half-Life first, then play Blue Shift, then play Opposing Forces and you get three perspectives on the incident that created the story and universe of Half-Life. I love Half Life and its Expansion packs, it adds so much to the story and is super fun to play in your spare time.