Smaller opposing forces but without the unbalanced difficulty curvature. Despite the recycled music from opposing forces, some obscene puzzles and its' short lenght, it was genuinely fun and a nice addition to the half life 1 story. If it had more content, it would definitely have reason to compete with opposing forces, however the only thing it does better in comparison to opposing forces is gameplay balance.

Still worth buying, even in full.

Smaller opposing forces but without the unbalanced difficulty curvature. Despite the recycled music from opposing forces, some obscene puzzles and its' short lenght, it was genuinely fun and a nice addition to the half life 1 story. If it had more content, it would definitely have reason to compete with opposing forces, however the only thing it does better in comparison to opposing forces is gameplay balance. Still worth buying, even in full.