Red Dead Redemption: Undead Nightmare — All Cheat Codes & How to Use Them

There are over 20 working cheat codes in Red Dead Redemption: Undead Nightmare. Enter them through the pause menu (Options → Cheats), type the phrase exactly — including commas where required — and toggle the code on once it appears in your list. Fair warning: activating any cheat disables autosaving and blocks trophy/achievement progress for that session. Load your last manual save when you’re done.

One thing the usual lists get wrong: not every base-game RDR cheat carries over to Undead Nightmare. Codes like Clear Bounty and Change Weather simply don’t function in the DLC. Below, every code is organized by what it actually does — not alphabetically — so you find what you need fast.

Opening the Cheat Menu in Undead Nightmare

Pause the game, go to Options, then select Cheats. You’ll see a text entry field where you type the cheat phrase. Codes are not case-sensitive, but punctuation matters — “I’m an American. I need guns” requires that period after “American.” Get it wrong and the code won’t register.

Once a phrase is accepted, the cheat slots into your list as a toggleable entry. You can switch it on or off freely within that session. Some codes — like Every Shot Counts and Donkey Rider — are already visible in the menu from the start and don’t require a phrase input at all.

Two things to do before you start entering codes: create a manual save, and note which mission you’re on. The moment you activate a cheat, autosave cuts out. If you close the game without manually saving over a clean file, you’ll lose any story progress made during that session.

Every Working Cheat Code — Full Reference Table

Gun Sets — What You’re Actually Getting

The four gun sets aren’t created equal, and which one you want depends entirely on how you’re playing Undead Nightmare.

Gun Set 1 is your early-game baseline — the Volcanic Pistol hits hard up close, the Springfield Rifle handles mid-range threats, and the Double-Barreled Shotgun is arguably the most reliable horde-clearer in the DLC. If you’re just starting and want to feel competent immediately, this is the one.

Gun Set 2 adds serious range with the Buffalo Rifle and crowd-control potential with the Winchester Repeater. The Fire Bottle inclusion is underrated here — burning undead spread fire to nearby enemies, which turns tight groups into chain-reaction kills. The Semi-Auto Pistol gives you volume of fire when things get messy.

Gun Set 3 introduces Dynamite, which changes how you handle large hordes entirely. The Rolling Block Rifle offers the best long-range stopping power in the set, and the Pump-Action Shotgun is faster to cycle than the Double-Barreled. This is the set for players who want explosive crowd control alongside precision.

Gun Set 4 is the specialist loadout. The LeMat Revolver has a unique secondary shotgun barrel — one trigger pull, and it switches from pistol to a close-range blast. The Carcano Rifle is the fastest bolt-action option for moving targets. Throwing Knives are mostly novelty in a zombie scenario, but the Evans Repeater’s large capacity (28 rounds without reloading, per its in-game stats) makes it excellent for sustained fire without pausing.

Stacking Gun Set 4 with Infinite Ammo removes every reload concern. The Evans Repeater becomes genuinely oppressive in that combination.

Invincibility, Infinite Ammo, and Dead Eye — The Survival Cheats

These are the cheats most people actually come here for. They work exactly as described, but a few interactions are worth knowing.

Invincibility (“He gives strength to the weak”) blocks all incoming damage — undead bites, falls, explosions, everything. It does not prevent John from being knocked off his horse. You can still get swarmed and dismounted, which in a dense horde situation can still leave you in a bad spot if you’re not watching your surroundings. The code is a true damage blocker, not a full immunity shield against all game states.

Infinite Ammo (“Abundance is everywhere”) eliminates depletion for every weapon in your current loadout. Pair this with Gun Set 3 for unlimited Dynamite throws — which is as chaotic as it sounds. Community testing suggests this code works correctly across all weapon categories including thrown items, not just firearms.

Dead Eye levels 1, 2, and 3 unlock progressively. Level 1 lets you manually paint targets; level 2 auto-paints on aim; level 3 auto-paints critical spots. In Undead Nightmare specifically, headshots matter more than in the base game — undead take significantly reduced damage from body shots, so level 3 Dead Eye that highlights headshot zones is legitimately useful even in a no-challenge run.

Infinite Dead Eye (“I don’t understand infinity”) keeps the meter permanently full. Combined with level 3 Dead Eye, you’re essentially in slow-motion target-painting mode indefinitely. For clearing large hordes or protecting towns under siege, this is probably the most powerful combination in the DLC.

Infinite Horse Stamina (“Make hay while the sun shines”) lets your horse sprint cross-map without stopping. Given how large the Undead Nightmare map is and how often you’re riding between besieged towns on a timer, this one has more practical value than it might seem.

Cheats from the Base Game That Don’t Work Here

This is where most guides fall short — they list base-game codes without flagging that the DLC environment strips several of them out entirely.

The following codes from Red Dead Redemption’s main campaign do not function in Undead Nightmare:

• Clear Bounty — no bounty system exists in the DLC, so the code has nothing to act on
• Change Weather — Undead Nightmare controls its own weather states as part of the horror atmosphere; player-triggered weather changes are locked out
• Raise/Lower Wanted Level — same reason as Clear Bounty; the wanted system isn’t active
• Gentleman’s attire / Outfit cheats — outfit unlocks tied to base-game progression don’t transfer; John wears his Undead Nightmare-specific gear
• Fame-related cheats — the fame mechanic doesn’t carry into the DLC’s standalone structure

If you’re entering a code and it’s not registering at all — not even showing as unrecognized — it’s likely one of these non-functional DLC entries. Don’t waste time checking your spelling on those.

Progress, Trophies, and the One Rule You Can’t Ignore

Activating any cheat in Undead Nightmare disables autosave for the entire session and suspends all trophy/achievement tracking. That covers both the standalone Undead Nightmare trophies and any shared progress with the base game’s trophy list.

The practical workflow: manual save before activating anything. When you’re ready to return to normal play, exit to the main menu, load your clean save, and your progress resumes as normal. Cheats don’t permanently flag your save file — the restriction is session-based, not permanent.

One edge case worth flagging: if you’re mid-mission when you activate a cheat, completing that mission in the same session will not count toward story completion tracking. The mission plays out, but progress isn’t recorded. This catches people off guard when they realize a town defense or story objective didn’t register. Complete the mission cleanly on a separate session if it matters for your completion run.

On PC specifically (where Undead Nightmare became available as a standalone release in 2023), the cheat menu functions identically to the console version. Same phrases, same toggle system, same save restrictions.

Common Questions

Do cheats work in Undead Nightmare multiplayer?

No. Cheats are strictly single-player only. Entering codes has no effect on any online or co-op session.

Can I earn 100% completion with cheats active?

No. Completion tracking is tied to normal progression, and cheat sessions don’t count toward it. Use manual saves to switch between cheat play and completion runs cleanly.

Does activating a cheat permanently affect my save file?

No. The save file itself isn’t flagged. Restrictions are session-only — load a clean save and everything returns to normal.

Will Donkey Rider and Every Shot Counts show up without entering a phrase?

Yes. Both appear in the cheat list by default. You just toggle them on; no text entry required.

Does Gun Set 4 replace my current weapons or add to them?

It replaces your active loadout with the set’s weapons. If you want a specific combination from different sets, you’ll need to manage your inventory manually after spawning the set.