Description
Ever feel like the valley is too peaceful?
Random Monster Ambush adds surprise monster attacks while you explore, turning normal travel into tense “watch your back” moments — especially at night.
Why you’d want this mod
- Makes wandering around the world more exciting and unpredictable.
- Adds danger without forcing you into dungeons.
- Fully configurable so you can keep it light (rare ambushes) or go full chaos mode.
- Pick which monsters can appear and when ambushes are allowed.
Features
- Random ambush checks happen on a timer (configurable).
- Spawns a small group of monsters around you (configurable max).
- Optional Elite Boss ambushes (bigger, glowing, tougher).
- Can be limited to nighttime only, or allowed during the day.
- Can block ambushes indoors by default (recommended).
- Monsters spawned by ambushes are cleaned up the next in-game day.

Configuration (GMCM Options)
Open GMCM in-game to customize everything.
General settings
- Enable mod
Turns the entire mod on or off. - Check interval (ticks)
How often the game rolls for an ambush (60 ticks ≈ 1 second).Default: 120 ticks. - Ambush chance
The chance an ambush happens when a check runs (0.00–1.00).Default: 0.10 (10%). - Max monsters per ambush
Maximum number of monsters that can spawn in one ambush. - Minimum spawn distance
How close monsters are allowed to spawn to you (in tiles). - Maximum spawn distance
How far monsters are allowed to spawn from you (in tiles). - Allow daytime ambushes
If OFF, ambushes won’t happen before 6:00 PM. - Ambush start time
The earliest time ambushes can start (e.g. 1800 = 6:00 PM).If daytime ambushes are OFF, this will be forced to 6:00 PM or later. - Disallow indoor ambushes (default ON)
If ON, ambushes only happen outdoors (blocks all indoor maps, including modded interiors). - Skip during events & festivals
If ON, ambushes won’t happen during festivals, events, cutscenes, or minigames. - Skip ambushes while holding a fishing rod
If ON, ambushes won’t happen if you’re currently holding any fishing rod.
Monster types
These toggles let you choose exactly what can appear:
- Green Slime
- Dust Spirit
- Bat
- Rock Crab
- Ghost
- Skeleton
- Squid Kid
- Shadow Brute
- Shadow Shaman
- Serpent
(If you turn one off, it will never spawn in ambushes.)
Boss ambushes
- Enable boss ambushes
Allows elite boss ambushes to happen sometimes. - Boss ambush chance
Chance that a successful ambush includes a boss monster.Default: 0.10 (10%). - Boss health multiplier
Multiplies the boss monster’s HP (2.0 = double HP). - Boss damage multiplier
Multiplies the boss monster’s damage (2.0 = double damage).
Elite bosses are larger and glow, so you can instantly tell it’s a boss.
Notes
- This mod doesn’t edit game files (SMAPI mod only).
- Works best with GMCM so you can tweak settings easily.
- “Disallow indoors” is ON by default to avoid ambushes inside shops/homes.
Q: Do I need a new save?
A: No, you can add or remove this mod anytime.
Q: Do I need Generic Mod Config Menu (GMCM)?
A: No, but GMCM is strongly recommended so you can change settings in-game.
Q: Where do ambushes happen?
A: By default, ambushes only happen outdoors because “Disallow indoor ambushes” is ON.
Q: Can ambushes happen indoors (shops/houses/buildings)?
A: Yes—turn OFF Disallow indoor ambushes in GMCM.
Q: Why don’t ambushes happen in the Mines / Skull Cavern?
A: Those are indoor locations, so they’re blocked when Disallow indoor ambushes is ON.
Q: Can I allow Mines but still block other indoors?
A: Not in the current version, but it’s easy to add an “Allow Mines” exception option.
Q: Can I choose which monsters can spawn?
A: Yes—there’s a “Monster types” section in GMCM where you can toggle each monster on/off.
Q: How do I make ambushes rarer or more common?
A: Change Ambush chance (and/or increase Check interval to roll less often).
Q: What does “Check interval (ticks)” mean?
A: It’s how often the mod rolls for an ambush; 60 ticks ≈ 1 second.
Q: Can I make ambushes only happen at night?
A: Yes—turn OFF Allow daytime ambushes and set Ambush start time to the time you want.
Q: What is an Elite Boss?
A: It’s a tougher ambush monster that is bigger, glowing, and gets HP/damage multipliers.
Q: Can I turn bosses off completely?
A: Yes—turn OFF Enable boss ambushes.
Q: Can ambushes interrupt festivals, events, or cutscenes?
A: No—if Skip during events & festivals is ON, the mod won’t spawn during those.
Q: Does this mod edit game files (XNB)?
A: No, it’s a SMAPI mod only.
Q: Is it safe to remove?
A: Yes—monsters spawned by the mod are cleaned up automatically, and removing the mod won’t break your save.
Q: I’m fishing and keep getting ambushed—can I stop that?
A: Yes—turn ON Skip ambushes while holding a fishing rod.


