Tokyo Walled City just dropped its trailer at TGS 2026 and the indie imsim hype train is already rolling — neon-soaked, parkour-heavy, password-stealing chaos in a walled-off Neo-Tokyo district. Grim Ronin is cooking a retro-cyberpunk stealth action game with Dishonored-style movement, Deus Ex hacking vibes, and survival horror/RPG sprinkles, starring mercenary Reiko Kimura trapped behind those mysterious walls. The 0451 gag in the trailer sealed it for half the internet, and Japanese outlets like Game*Spark are calling it straight-up inspired by the classics while promising 18-24 months of Steam Early Access content drops.

Trailer comments are eating it up with "Deus Ex with Dishonored" and "stealth Half-Life" takes flying everywhere, plus shoutouts to Ghost in the Shell and Metal Gear Solid for good measure. Grim Ronin's X account and the Steam page confirm freeform vertical exploration across abandoned markets, neon alleys, and slums, with sound-propagation stealth, cyberpunk gadgets, and that signature imsim "your choices shape the approach" energy. No release date locked yet, but the early access window means we're getting patches, new districts, and system tweaks based on actual player feedback instead of another vaporware wait.

While big studios sleep on the genre, this little Grim Ronin project is scratching the itch with hand-crafted verticality and that PS2-era cyberpunk aesthetic a lot of folks miss. Rock Paper Shotgun nailed the "no new Deus Ex, but this might do" vibe, and the Japanese coverage is already translating the trailer hype for the home crowd. Early Access could be the move — if the movement tightens up and the horror elements hit, this walled city might actually stick around.