There is no score. There is no timer. There is no way to lose. KUZABOOM calls itself an urban renewal simulator and then hands you a rocket, and the honesty of that framing is most of the appeal: every other game in this genre pretends the destruction is in service of something. This one admits that watching a building come down is the entire product.

Five capitals, each rendered as a neon night-postcard with its own weather. New York gets deep navy, a moon and pigeons. London gets drizzle and drifting fog. Moscow gets snowfall and ruby light. Tehran gets burnt-orange dusk under the Alborz mountains and street cats. Paris gets an indigo evening and warm gold windows, which makes what happens next feel worse than it should.

The landmarks are where the work went. Big Ben has a real running clock and a final BONG. The London Eye breaks loose and rolls down the street. Spasskaya's ruby star shoots off. St Basil's onion domes pop like corks. The Eiffel Tower takes three hits and then topples full length in slow motion, which is the single most satisfying four seconds in the whole thing. The Statue of Liberty, Ostankino, Sacré-Coeur and the Damavand peak are indestructible background silhouettes — the game knows which things you should not be allowed to touch.

The arsenal escalates on keys 1 through 5: rocket, airstrike, meteor, orbital laser, nuke. The laser is press-and-drag and vaporises whatever the beam sweeps. The nuke asks twice, levels everything, and then drops ash for a while afterwards, which is a tasteful amount of consequence for a game with no fail state. REBUILD puts the city back up behind scaffolding so you can do it again.

The cities are professionally evacuated. No people are ever depicted — only cats, and the cats always escape. Rated 12+, and the rating is doing less work than the cats are.