Can it really be called a sequel if the original actors are not involved? That is what this is not, right? WarGames: The Dead Code is released on DVD 25 years after the original and I will not call it a sequel. Rather, as described on the NetFlix sleeve, it is "a follow-up to the popular Cold War-inspired hit." So, a "follow-up" is the term used. Then, that is what I will use as well. My review of Wargames: The Dead Code - It's okay for a follow-up, with a cool twist (that I won't spoil here) near the end. Nice reflection on the first film, it ties in well, and all loose ends are tied up by the credits. I recommend you rent it today.
That is all.