It would be quite funny then to have them shadow drop it on april 1 with people freaking out about trying to tell others only be be met with disbelief as credibility of any statement about game release was already heavily compromised. Bonus point if they add 'coming soon" to logo on steam page for that day.

Turing Complete

It is a game about building functional computer by combining logic gates. Game arranged in series of small puzzles to make it digestible for people without electric engineering degree like me. You slowly build new components, so you can use them later as higher level abstraction until you get to the point of having to program your own computer to solve further puzzles. If you curious how computers work, this game is a gem.

Sekiro is the closest reference I know, but it is still quite different. Sekiro most important part is bosses, and I doubt En Garde will provide same variety (And if it against all odds proves me wrong it probably gonna become my new fav game). On the other hand En Garde focuses more on combat with regular enemies, and IMO does it better then other games with similar gameplay.