About the +1 Katana Evolution Wiki

This is an unofficial fan wiki for Roblox +1 Katana Evolution. It is not run by Gatto vs Denis, GattoHoldings, or Roblox Corporation. The game is a free incremental that launched on 11 June 2026, still updating as of September 2026, with about 17.4 million visits, 31 thousand favorites, an 85 percent like ratio, a 12-player server cap, and a badge named A TRUE SHINOBI. We cover codes, katana ranks, evolutions, pets, stage gates, rebirth loadouts, reconstructed updates, and the official links. We do not cover a co-op campaign that does not exist, a pre-launch rumor for a game that already shipped, or a Trello that was never published.

Play on the official experience. Join the Gatto vs Denis group for codes. Use the links hub when you only want those URLs, and Discord and Group when you want the join order.

What the wiki covers

• Codes. Live strings, rewards, and the group-plus-X-icon redeem path. Start at codes. We only list a code after it redeems on an account that already joined the group, or after a fail is confirmed the same way.
• Guides. First hour, rebirth, stages, wins, evolutions, controls. Index: guides.
• Ranks. Katanas, evolutions, pets scored against recommended-damage gates, not against thumbnail art. Index: tier list.
• Builds. Loadouts of katana plus pet plus rebirth timing plus a pass that actually pays. Index: builds.
• Updates. Reconstructed month pages when the HUD, group, or Roblox timestamp moves. Index: updates.
• Tools and scripts. Planner math and farm notes, with the same honesty about account risk. Rebirth planner and scripts.

If a topic is not on that list, it is because we could not verify it. “Could not verify” is a complete sentence. It is not an invitation to invent a drop table.

How we verify codes

1. Join Gatto vs Denis on a test account.
2. Open the X / Twitter icon in the top-right HUD.
3. Paste the string exactly (RELEASE, COOKED, or whatever the group just posted).
4. Record the reward the HUD actually grants. As of September 2026 that is 10K Wins for RELEASE and 50K Damage plus 1 Level for COOKED.
5. Publish on the codes pages only if step 4 happened. A Discord screenshot without a HUD confirm stays off the list.

Expired codes leave the active list when redeem returns a fail, not when a YouTube title says “NEW.” We would rather be a day late than host a dead string that wastes a player’s group join.

How we verify ranks and notes

Katana names are descriptive until the store prints a label: bamboo starter, wooden at 1 Win, fire-inscribed, purple lightning matching the official thumbnail’s Level 1 / 67 / 999 set. Evolution ranks use purple-bar timing, not armor fashion. Pet ranks use hatch odds we can see (Common/Uncommon/Rare ~40 percent, Epic ~50 percent, Legendary ~10 percent, Secret ~0.20 percent) and the rule that a worse hatch is not an upgrade.

Update pages refuse invented patch IDs. September 2026 is a Roblox bump around 4–6 September, live codes, and a group thread asking for katana ideas. That is the whole verified beat on the September 2026 page. If we cannot point at the HUD or the group, it does not go in the note.

Stage numbers we will defend today: Stage 2 ~300 recommended damage, Stage 3 ~5,000, Stage 5 30,444. Rebirth keeps katanas. One rebirth ~x2, three ~x5. When the HUD disagrees with a sentence on this wiki, edit the sentence, not the HUD.

What we will not do

• Pretend this site is official.
• Hotlink a fake Trello, a stolen script marketplace, or another wiki’s pages as if they were primary sources.
• Write upcoming-release copy. The game is out.
• Rank blades by how purple the lightning looks.
• Tell you a cosmetic starter pack is a build.
• Hide the legal pages: Terms, Privacy, Cookies.

Languages on this site are English at the root plus French, German, Spanish, and Brazilian Portuguese under their prefixes. Legal URLs stay English. If a translation lags a fact, the English HUD-checked page is the one to trust until the others catch up.

This wiki exists so you can redeem two codes, buy wooden at 1 Win, and stop treating a 12-player server like a raid. If a page helped you do that, it did the job. If a page guessed, it failed the job — and we would rather leave the row blank than fill it with a name Gatto vs Denis never printed.