KnifeBlades
KnifeBlades is arena io with cutlery economics: pick up knives, orbit them around yourself, and duel players whose blade-halos are doing exactly the same math. Offence and defence are one resource — spent knives fly away, kept knives shield.
Every engagement is a mutual calculation of halo density, which makes retreat a respectable weapon.
Tip: throw one knife to bait their volley, dodge it, then close in on their thinned halo — the counterpunch is the whole meta. More arena economics at online games.