After an image emerged allegedly teasing the sequel in the next five years, this has since been refuted and debunked.
Find out what could have been.
At least according to the series' former writer Marc Laidlaw.
No, he didn't exactly give us release dates.
He may have to answer questions on Half-Life 3...
We'd settle for "announced game" at this stage.
It's the game that never ceases to generate buzz...
Still far from confirmed.
Valve admits they're experimenting, but a full game isn't planned.
It looks like Valve are most certainly not working on a VR game.
Company "co-operating with Half-life", says chairwoman: Valve disputes comment.
Fans are getting increasingly desperate.
Or something Half-Life related.
Valve's CEO on why the studio doesn't churn out sequels.
Valve's Doug Lombardi says exclusives isn't their style.