Tower Defense X: BETA Tower Defense X Guides
From first launch to Ultra Nightmare clears — every strategy guide in one place.
Tower Defense X (TDX) is a Roblox tower defense by JOHN ROBLOX and the Tower Defense X group, released November 21, 2023. Matches support online co-op, towers have HP and can be damaged, and most units split into dual upgrade paths that define your late-game power. Difficulty spans Easy, Intermediate, Elite, Expert, Endless, Nightmare, and Ultra Nightmare, with Gold, Crystals, and XP driving progression.
This hub collects every in-depth guide on the wiki. Whether you need day-one basics or an Ultra Nightmare roadmap, start here and branch into the topic that matches your current wall. PC navigation shows the top eight guides in the dropdown — open this hub for the full list.
New player path
If you just installed TDX, follow this order:
- Getting Started — modes, currencies, first towers, and co-op etiquette.
- Controls & Targeting — PC and mobile inputs, sell/upgrade flow, targeting modes.
- Codes Hub — claim free Gold and Crystals before buying upgrades.
- Dual Path Upgrades — avoid wasting Crystals on the wrong branch.
- Tier List — see which land, air, and sea units justify the investment.
Getting Started also links to Gold Farming once you unlock Intermediate and Elite farming routes.
Difficulty guides
TDX difficulty spikes hard after Elite. These walkthroughs focus on real squad compositions — not generic “place more towers” advice.
| Guide | Best for |
|---|---|
| How to Beat Expert | First serious wall; air/sea checks and tower HP management |
| Endless Mode Guide | Wave 201 scaling, boss gauntlets, economy pacing |
| How to Beat Nightmare | Endgame coordination, burst DPS, path-specific counters |
| How to Beat Ultra Nightmare | Above Nightmare — golden towers, X-Tank bait, elite resists |
Expert teaches macro pacing; Nightmare punishes slow economies; Ultra Nightmare assumes golden unlocks and perfect Co-op roles. Read Dual Path Upgrades between tiers so each build scales instead of resetting.
Economy and build guides
Gold gates tower count; Crystals gate path depth. These guides optimize both:
- Gold Farming — Endless loops, Farm placement, wave timing, and co-op splits.
- Dual Path Upgrades — Juggernaut, EDJ, Laser Gunner, Railgunner, Medic, Operator, and more.
- Endless Mode Guide — how Endless differs from Nightmare and where to invest for late waves.
Pair economy guides with the Tier List when debating Golden Juggernaut, Missile Trooper, or Warship investments.
Controls reference
Mechanical skill matters in TDX because towers die and leaks snowball. Controls & Targeting covers hotkeys, mobile gestures, manual targeting, sell timing, and when to prioritize First, Last, or Strongest modes on multi-lane maps.
Co-op and team play
TDX co-op shares lane pressure but not always Gold equally — communicate who buys Farm, who covers air with EDJ or Laser Gunner, and who saves for Juggernaut anti-boss. Expert, Nightmare, and Ultra Nightmare guides assume you can call swaps when a lane leaks sea units toward your Warship line.
Dedicated coverage:
- Co-op Guide — four-player roles, callouts, duplicate Farm etiquette, Expert/Nightmare role cards
- Power-ups Guide — A-10, AC-130, crates, fields, Nightmare consumable timing
- Enemies Guide — tower killers, stealth, golden resistance, air/sea types, boss counters
Keep guides current
TDX still receives balance patches and a 2026 Roadmap for PvP, Naval, and Tower Battles Part 2. After updates, re-check:
- Codes Hub for new promo strings
- Tier List for shifted metas
- Expert / Nightmare / Ultra Nightmare guides for revised wave notes
All guides at a glance
| Page | Summary |
|---|---|
| Getting Started | Day-one roadmap, modes, currencies, starter towers |
| Controls & Targeting | PC/mobile inputs, targeting, sell and upgrade tips |
| How to Beat Expert | Squad comps, wave pacing, tower survival |
| Endless Mode Guide | Wave 201, bosses, economy, Endless vs Nightmare |
| How to Beat Nightmare | Endgame clears, burst windows, coordination |
| How to Beat Ultra Nightmare | Hardest mode, golden prep, elite counters |
| Gold Farming | Endless income, Farm stacks, co-op splits |
| Dual Path Upgrades | Path A vs B for every major tower |
| Co-op Guide | Four-player roles, callouts, matchmaking etiquette |
| Power-ups Guide | Consumables, codes, Nightmare-only power-ups |
| Enemies Guide | Threat types and counter towers |
Claim free resources on the Codes Hub and validate picks on the Tier List before spending hard-earned Crystals.
Frequently Asked Questions
Quick answers to the most common questions.
Which guide should I read first in Tower Defense X?
Start with Getting Started, then Controls, redeem codes from the Codes Hub, and read Dual Path Upgrades before pushing Expert.
What is the hardest mode in TDX?
Ultra Nightmare sits above Nightmare as the current skill ceiling. Clear Nightmare consistently and unlock golden towers before queuing Ultra Nightmare.
Do these guides cover co-op?
Yes. Getting Started, Expert, Nightmare, Ultra Nightmare, and Gold Farming all note co-op roles like Farm duty, air coverage, and boss burst.
How do dual upgrade paths work?
Most towers branch into two upgrade paths at mid-tier. Crystals unlock deeper nodes — see Dual Path Upgrades for path-by-path advice.
Where can I find working promo codes?
The Codes Hub lists community-reported active strings and expired codes so you do not waste redemptions.
Why do my towers keep dying?
TDX towers have HP and enemies can focus them. Controls covers targeting; Expert and Nightmare guides cover placement and Medic support.