Last checked: September 11, 2026
KAT (Knife Ability Test) Hub — Codes, Update, Guides & News
· September 11 — wrong-game place ID fixed; all player, visit and rating figures re-sourced; codes and Music ID siblings added
· September 11 — sibling KAT codes re-verified; Radio pass corrected to 60 Robux
· September 5 — sibling KAT guide rebuilt against the correct place
KAT (Knife Ability Test) is a player-versus-player deathmatch published by Fierzaa on January 21, 2017, in which every player carries a charged, arcing throwing knife and a hitscan gun. It is one of the oldest fighting games still running on Roblox — and, after seven and a half months offline under Roblox review, it is now a very small one.
Get the address right first. KAT is place ID 621129760, universe 254394801. Two other Roblox places answer to the name and both redirect convincingly, which is why so much KAT coverage is about the wrong game — this hub included, until today.
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Earn Robux instead →What’s the current KAT update?
There is not one. The last republish stamp Roblox returns for KAT’s universe is June 2, 2026, and it had not moved when we re-read it on September 11, 2026 — roughly three months with no content shipped. Fierzaa publishes no numbered patch versions for KAT, so a site quoting you a "KAT v-something" for 2026 has invented it.
Two other signals agree. KAT’s universe carries exactly one badge, "Meet an admin", created in 2017 — a new badge is usually the first thing a resumed cadence produces, and none has appeared since the relaunch. And the Roblox virtual-events feed, where devs post dated in-game events, returns an empty list for the universe.
The last genuine event in KAT’s history is the relaunch itself. It was put under Roblox review on August 1, 2025 and made unplayable; Roblox published no reason. On March 19, 2026 it came back with saved progress, skins, passes and gem balances restored. The content returned; the population did not.
What’s next for KAT?
We have no dated evidence of anything planned. Fierzaa’s Discord is the place a first signal would appear: the invite discord.gg/QxvdptB is verifiably official, because the invite’s creator is Fierzaa’s own account, and it held 32,770 members on September 11, 2026. No dated post there or anywhere else promises an update.
One thing that will not arrive is a code system. KAT has never had a redeem menu, and every "KAT codes" list circulating online is really covering a separate 2025 recreation at place 111163066268338, which itself stopped opening to the public. Our KAT codes page documents that in full, with the six dead codes archived.
All KAT guides
KAT Codes — Are There Any Working Codes?
No — and the reason is that the codes everyone lists belong to a different game. Re-tested September 11, 2026, with all six expired codes archived and the Radio pass price corrected to 60 Robux.
Music IDsKAT Music IDs & the Radio Pass
The only code-shaped input KAT accepts is a Roblox audio asset ID, and only if you own the 60-Robux Radio pass. How to find IDs that actually play, and why most old ones no longer do.
GuideKAT Guide 2026 — Knife Powers, Gems & Game Passes
All eleven knife powers with their real gem payouts, the three modes, every game pass at its live API price, and why Explosive Knife at 100 gems is the first thing to buy.
ComparisonKAT vs Blade Ball (2026)
Head to head on real numbers: 234 players against 20,411, June 2 against September 9 for the last republish, and the VIP-pass multiplier that turned out to be Blade Ball’s.
KAT in numbers
Every figure below was read from the Roblox games, votes, badges and game-pass APIs on September 11, 2026, against place 621129760 / universe 254394801.
- Concurrent players: 234 — median of fourteen readings taken 20:19–20:32 UTC on September 11, 2026, range 229 to 244. Not the 10,000 to 20,000 KAT coverage keeps repeating.
- Lifetime visits: 1,481,074,036 on September 11, 2026 — not 2.2 billion.
- Rating: 87.4% (1,603,125 up / 230,649 down), September 11, 2026.
- Favourites: 4,238,268 on September 11, 2026 — the clearest sign of how big this game used to be.
- Server size: 22 players. Genre: Action › Battlegrounds & Fighting.
- Game passes: 16, of which 10 on sale on September 11, 2026. Radio 60, VIP 95, MVP 200, Tesla Knife 450. Only MVP speeds up progression; VIP carries no multiplier.
- Badges: one, "Meet an admin", awarded 71,457 times.
- Last republished: June 2, 2026 — unchanged between our September 5 and September 11 reads.
Frequently asked questions
What is the current KAT update?
There is not a current one. The last republish stamp Roblox returns for KAT’s universe is June 2, 2026, and it had not moved when we re-read it on September 11, 2026 — roughly three months with no content. KAT does not publish numbered patch versions, and its universe still carries exactly one badge, "Meet an admin", created in 2017. Any site quoting you a KAT version number for 2026 has invented it.
How many players does KAT have in 2026?
234 concurrent players worldwide, the median of fourteen readings taken on September 11, 2026, against 1,481,074,036 lifetime visits. The "2.2 billion visits and 10,000 to 20,000 concurrent players" figure repeated across KAT coverage — including on earlier versions of our own pages — is not returned by any live Roblox endpoint.
Which place ID is the real KAT?
621129760, universe 254394801, published by Fierzaa on January 21, 2017. Place 4592931260 is an abandoned 2020 clone by JustXua with 301,872 visits and nobody in it, and place 111163066268338 is a 2025 recreation that now returns a 302 to a Title-Unavailable URL. All three redirect convincingly, so match the creator and the scale, never just the redirect.
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We touch this hub whenever any KAT sibling changes. If you want a knife-adjacent PvP game with a live population and live codes, see our Blade Ball hub. Suggestions go in our Discord server.