Tower Defense Simulator Codes

Tower Defense Simulator, usually called TDS, is a Roblox tower defense game from Paradoxum Games, first published in June 2019. The description keeps it short: place units to defend against hordes of zombies, team up with friends, and face even stronger bosses to unlock new units. When we checked on October 27, 2026 it had passed 5 billion visits and 3.5 million favorites, with about 17,000 people playing at once.

Joining the Paradoxum Games group, which has about 6 million members, gives you $100 extra starting cash in every match. That is a permanent bonus rather than a code, so it is worth doing before your first match.

There are six main survival modes. Each one ends with a boss wave, and the harder ones need more towers and better placement. These details come from the official Tower Defense Simulator Wiki:

Hardcore is the odd one out. It rewards Gems instead of Coins, allows at most three players, disables consumables, and beating it unlocks Voidcore mode. In every mode, cash from a defeated enemy is split between players, so a duo gets half each no matter who dealt the damage. At the end of a match, the Coins and EXP you get depend on how many waves you survived and whether you won.

Fallen is where teams usually get stuck. The wiki says enemy health in Fallen scales with the number of players, starting at two: 15% more in a duo, 25% in a trio and 40% in a full squad of four. It also has a Hidden Wave, which takes the mode from 40 to 42 waves. To trigger it, every player disables Skills before the match, and after Fallen is voted, someone sends 120, 1 and 1009 in chat as separate messages. The screen flashes on the last number to confirm it worked.

The current update is Version 2.16.0, released on October 23, 2026. Its description lists Solar Requiem Night III and a new Hollow Crate, after Night II in 2.15.0 and Night I, the Sun and Moon Crate and a Battlepass in 2.14.0.

According to timesaver, Solar Requiem runs from October 9 to November 19, 2026 over four Nights, and no code came with it. You level its Battle Pass with Lunar Shards from matches and event maps. The Hollow Crate adds Halloween skins. In other words, this event is played for, not redeemed, so do not expect a code until the next milestone.

Tower Defense Simulator codes do not last long. The official TDS Wiki says most can only be redeemed for a limited time, and its code table marks every code except the two above as expired. These are the most recent ones, with their release dates from the wiki:

• CHRISTMAS2025: Christmas 2025 Crate, released December 25, 2025.
• NOTESLA?: Premium Crate, released September 15, 2025.
• 4BVisits: Premium Crate, released May 14, 2025.
• 1POINT7MIL: Vendor skin, released March 19, 2025.
• TDS5YEARS!: Party Crate, released June 5, 2024.

Try Hard Guides still shows TDS5YEARS! and IMCONSUMING under new codes, on a page first published in June 2024. The wiki, RobloxDen and UrGameTips all list them as expired, so we follow the wiki.

If you play more than one tower defense game on Roblox, keep their codes apart. Cameraman Tower Defense, Slop Tower Defense and Candy Kingdom Defense each have their own code pages on this site, linked below, and none of their codes work in TDS. The same goes for Ultimate Tower Defense Simulator, which is a different game with a similar name.

If the ABX box rejects a code, check these first:

• Missing tower: you do not own Pursuit or Shotgunner yet. Buy the tower first.
• In a match: codes only work in the lobby.
• Limited uses: some codes stop working after a set number of players redeem them.
• Expired: CHRISTMAS2025 and the other codes above no longer work.
• Already used: each code works once per account.

New codes usually arrive with milestones, like 2MILLION for 2 million likes, and with holidays. The developers often put the newest one straight into the game description, as they did this time.

The official Discord is discord.gg/tds, linked from the official TDS Wiki. We checked it on October 27, 2026: it opens the Tower Defense Simulator server, with about 1.04 million members, and the invite is permanent. We re-check this page regularly and update the date at the top whenever something changes.

We check Tower Defense Simulator codes by hand. A code goes into the main table only when at least two independent sources agree on it, or when it comes straight from the official game description or rules. Codes that only one source reports, or that sources disagree on, are kept in a separate unconfirmed table, so you can still try them without mistaking them for confirmed codes. A code moves to the expired list once it is reported as no longer working.

This page was last checked on October 27, 2026. We never make up codes or rewards, and we keep a list of the sources behind every code. If something on this page no longer matches what you see in the game, tell us with the Feedback button and we will check it again.

Every code is listed exactly the way the game expects it, with the same capital letters, numbers and symbols, so the safest way to enter one is the Copy button next to it rather than typing it by hand. A code that turns out to be wrong is moved to the right table, never silently deleted.