Slay the Spire 2 Event Farming: How to Reroll Rooms

How to Reroll Rooms in Slay the Spire 2

Mastering Slay the Spire 2 Event Farming: How to Reroll Rooms is essential for high-ascension players who can’t afford a run-ending RNG roll. Rerolling rooms in Slay the Spire 2 is a manual process that involves manipulating save files to bypass the game’s strict autosave system. Unlike standard RPGs, this roguelike deckbuilder saves your progress the moment you enter a room or complete an action. Trust me, I’ve tried simply Alt+F4ing after a bad card draw or a disastrous event outcome, and it never works—the game puts you right back in the misery you tried to escape.

The Save and Quit Method Explained

Many players assume that hitting “Save and Quit” allows them to retry a turn, but Mega Crit designed the game to prevent this. When you reload, the game places you exactly where you left off, preserving the Random Number Generator (RNG) seed. This means drawing the same cards and encountering the same event outcomes every time. In my testing with the March 2026 launch build, the seed generation logic appears even more robust than the first game, making casual save scumming impossible without file access.

Step-by-Step Event Reset Guide

To truly reroll an event, you must restore a previous state before the RNG outcome was locked in. Follow these steps carefully:

1. Navigate to the Slay the Spire 2 save directory on your PC.
2. Copy the preferences folder to a safe location (like your Desktop) before clicking an event node.
3. Enter the room and check the event outcome or card rewards.
4. Alt+F4 immediately if you are unsatisfied with the result (do not click “Leave” or “Proceed”).
5. Replace the current save folder in the game directory with your backup copy.
6. Relaunch the game to retry the node or choose a different path on the map.

High-Value Events to Farm

Not every room is worth the effort of a manual backup. However, certain “run-defining” events in Slay the Spire 2 can drastically alter your win probability. Knowing which events to target for Slay the Spire 2 Event Farming: How to Reroll Rooms strategies can save you hours of playtime.

The Cursed Tome

This event offers the Necronomicon, a powerful relic that doubles your first 2-cost attack each turn. The downside is a significant HP cost to obtain it. By backing up your save before this event, you can test if your current HP is sufficient to survive the damage roll. If you die or take too much damage, simply restore your save and skip the book, or use a trainer to mitigate the health loss.

The Scrap Ooze

The Scrap Ooze is a classic risk/reward mechanic where you sacrifice HP for a chance to find a random relic. The probability of success decreases with each attempt. This is a prime candidate for save scumming. You can keep restoring your save until you get the relic on the first or second try, minimizing the health penalty. In my experience, this is one of the most efficient uses of the backup method.

How to Manually Backup and Restore Saves

Manually backing up save files is the cornerstone of event farming in Slay the Spire 2. This method, often called “save scumming,” requires knowing exactly where your data lives. I prefer the manual backup method over using automated mods simply because it keeps my Steam achievements intact and reduces the risk of flagging anti-cheat systems, however unlikely that is in a single-player game.

Locating Slay the Spire 2 Save Files

On the Steam version for PC, your save files are typically located in the installation directory. You can access this quickly via Steam:

If you are playing on a different drive, right-click the game in your Steam Library, select Manage, and then Browse local files. The preferences folder contains your current run data.

Cloud Sync Dangers

One critical oversight many players make is leaving Steam Cloud enabled while manually editing saves. Steam Cloud will often detect a mismatch between your local files and the cloud backup, automatically overwriting your manual changes with the “latest” (and often unwanted) save state. To prevent this, right-click Slay the Spire 2 in your library, go to Properties, and uncheck “Keep games saves in the Steam Cloud” before you begin your farming session. You can re-enable it once you are satisfied with your run.

Swapping Files to Force Event Outcomes

When you swap the files, you are essentially tricking the game into thinking the previous event never happened. It is crucial to replace the entire folder, not just individual files, to avoid sync errors with Steam Cloud. For advanced players, you might want to compare this manual method with automated tools in our save editor vs trainer comparison to see which fits your playstyle better.

Best Mods for Event Manipulation

Mods can streamline the reroll process significantly, removing the need for tedious file copying. The modding community has already begun creating tools to handle RNG manipulation directly in-game.

Installing the STS2 Reroll Events Mod

The “Reroll Events” mod adds a simple button to event screens, allowing you to refresh the options for a small gold cost or for free. This is far safer than manual file editing as it uses the game’s own logic to generate a new seed for that specific room. If you’re new to modding, check out our guide on Slay the Spire 2 mods for installation instructions.

Using STS2 Custom Deck Mods

Sometimes you don’t need to reroll; you just need a better start. Custom deck mods allow you to curate your starting hand, effectively “fixing” the RNG before the run even begins. This is ideal for testing specific synergies without hoping for the right card drops in Act 1.

Automate Your Run: Slay the Spire 2 Trainers

For players who want complete control over their run without messing with files or workshop mods, the XMOD trainer for Slay the Spire 2 offers a powerful alternative. It works by injecting code into the running game memory, allowing for instant changes, a common practice in video game cheating.

These featured mods are just the beginning. Whether you’re looking to skip tedious grinding, experiment with different playstyles, or speed up your progression, XMOD’s comprehensive toolkit offers dozens more options tailored to your playstyle.

Unlocking Slay the Spire 2 Infinite Card Draw

The “Infinite Card Draw” cheat is particularly useful for finding specific combo pieces. Instead of relying on RNG to draw your win condition, you can cycle through your entire deck in a single turn. This effectively negates the need to reroll rooms since you can win with almost any hand.

Slay the Spire 2 Max Hand Size Cheats

Normally, your hand size is limited to 10 cards. Using a trainer to bypass this limit allows for massive “Exodia” style combos that would be impossible in the vanilla game. For a full list of available cheats, consult our comprehensive Slay the Spire 2 cheats guide.

Why Are My Rerolls Not Working?

If you find that events are repeating even after reloading, you likely missed the autosave window or failed to replace the correct files. Understanding the save logic is key.

The Autosave Trigger Points

Slay the Spire 2 saves data at specific triggers. Knowing these can help you avoid locking in a bad result:

Avoiding Corrupted Saves in Slay the Spire 2

Frequent file swapping carries a small risk of corruption. Always keep a “master backup” of your preferences folder on a separate drive or cloud storage. If you do encounter a “Corrupted Save” error, verifying the game files through Steam usually fixes the structure, though you may lose the current run.

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Frequently Asked Questions