LEVEL 19 · Story Mode

Mysterious Swamp — Onward

We reached an island in the middle of Mysterious Swamp. Night has officially fallen, though it looks no different from day.

Level brief

We reached an island in the middle of Mysterious Swamp. Night has officially fallen, though it looks no different from day.

Crossing Mysterious Swamp has taken longer than expected, and every plant is eager to leave as soon as possible.

The enemy has new reinforcements, but fortunately, so do we—Corchid and Opti-caltrop.

Spawn system

Spawn analysis

Summarizes and visualizes the level's natural spawn behavior.

Medium

Current difficultyMedium

Wave previewFirst two waves

Scan the opening roster first; lane distribution and mechanics remain in the full table.

  1. Wave01
    Known spawns x0+ point pool1 zombie type
  2. Wave02
    Known spawns x0+ point pool1 zombie type
Open full level wave tableView all 20 waves and lane distributions
Full level wave table20 waves total
Fixed laneRandom lanePoint-pool candidate

Point poolWhen the level initializes, budget, cost, and unlock wave filter candidates. Types are drawn with replacement by candidate weight; lanes use anti-repeat smoothing.

  1. Wave01
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  2. Wave02
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  3. Wave03
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  4. Wave04
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  5. Wave05
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  6. Wave06
    Manual fixed configurationx1+ point-pool additions built at level start (random quantity)
    Fixed-lane distributionOnly spawns with an explicit lane are listed here
    1. Lane1
    2. Lane2
    3. Lane3
      • Firefly ZombieFIREFLYZOMBIE
        Fixed lane
        x1
    4. Lane4
    5. Lane5
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  7. Wave07
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  8. Wave08
    Manual fixed configurationx1+ point-pool additions built at level start (random quantity)
    Fixed-lane distributionOnly spawns with an explicit lane are listed here
    1. Lane1
    2. Lane2
      • Firefly ZombieFIREFLYZOMBIE
        Fixed lane
        x1
    3. Lane3
    4. Lane4
    5. Lane5
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  9. Wave09
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  10. Wave10FLAG
    Manual fixed configurationx2+ flag-wave generation x4+ point-pool additions built at level start (random quantity)
    Fixed-lane distributionOnly spawns with an explicit lane are listed here
    1. Lane1
      • Firefly ZombieFIREFLYZOMBIE
        Fixed lane
        x1
    2. Lane2
    3. Lane3
    4. Lane4
      • Firefly ZombieFIREFLYZOMBIE
        Fixed lane
        x1
    5. Lane5
    Flag-wave generationThe engine fixes this count while building the wave table at level start, then distributes lanes with smoothed random selection
    • Flag ZombieFLAGZOMBIE
      Random laneEligible lanes 1/2/3/4/5Flag-wave spawn
      x1
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Flag-wave spawn
      x3
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  11. Wave11
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  12. Wave12
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  13. Wave13
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  14. Wave14
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  15. Wave15
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  16. Wave16
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  17. Wave17
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  18. Wave18
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  19. Wave19
    Manual fixed configurationx0+ point-pool additions built at level start (random quantity)
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
  20. Wave20FLAG
    Manual fixed configurationx0+ flag-wave generation x8+ point-pool additions built at level start (random quantity)
    Flag-wave generationThe engine fixes this count while building the wave table at level start, then distributes lanes with smoothed random selection
    • Flag ZombieFLAGZOMBIE
      Random laneEligible lanes 1/2/3/4/5Flag-wave spawn
      x1
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Flag-wave spawn
      x7
    Point-pool candidatesOnly types affordable and unlocked for this wave are shown
    • Basic ZombieNORMALZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Starcone ZombieCONEZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Buckethead ZombiePAILZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?
    • Firefly ZombieFIREFLYZOMBIE
      Random laneEligible lanes 1/2/3/4/5Point-pool candidate
      ?

xN separately counts authored JSON records and deterministic engine flag-wave generation at this difficulty; ? is resolved only when the point pool builds the wave table at level start.

Related story

Configured by this level

Entered: Mysterious Swamp — Onward

View full scene →
  1. 0
    Cherry Bomb

    The mud in Mysterious Swamp really is a pain.

  2. 1
    Cherry Bomb

    Hurriclover said reinforcements were coming. They should be here any minute now.

  3. 2
    Opti-caltrop

    What's the rush? I'm here now, aren't I?

  4. 3
    Opti-caltrop

    I'm Opti-caltrop. Hurriclover sent me to help you deal with the fireflies around here.

  5. 4
    Opti-caltrop

    As for all this mud, I've got a friend on the way who can help with that.

  6. 5
    Opti-caltrop

    No idea what's taking them so long. Don't get your vines in a twist.

  7. 6
    (monologue)Homing Thistle

    (That was a lot to take in all at once.)

  8. 6
    (monologue)Red Stinger

    (Whoa, that's a lot of information all at once.)

  9. 7
    ——Homing Thistle

    Wait, what do you mean by "deal with the fireflies"?

  10. 7
    ——Red Stinger

    What's the problem with the fireflies? I haven't seen any.

  11. 8
    Opti-caltrop

    Sheesh, don't you ever do your homework first?

  12. 9
    Opti-caltrop

    The fireflies here can secrete a toxin that makes plants feel freezing cold.

  13. 10
    Opti-caltrop

    Some nasty zombies have been breeding these fireflies specifically for combat.

  14. 11
    Opti-caltrop

    Since I glow, those light-loving fireflies will come freeze me first.

  15. 12
    Opti-caltrop

    But I fire lasers, so freezing me won't affect my attacks.

  16. 13
    Lorus

    Laser attacks... So can you pick a direction, then just zap straight through the whole row?

  17. 14
    Opti-caltrop

    You've been watching too much sci-fi. Does your laser pointer go straight through a wall when you shine it at one?

  18. 15
    Opti-caltrop

    I shoot lasers, not X-rays. I can only hit one target.

  19. 16
    Lily Pad

    Lorus, your ability to hit multiple targets at once is pretty rare.

  20. 17
    Lily Pad

    Didn't we play with laser pointers by the pond all the time when we were kids? You should remember how they work.

  21. 18
    Lily Pad

    And a certain plant was especially fond of shining one across the lake and disturbing my naps.

  22. 19
    Opti-caltrop

    Oh, right. My friend who can take care of the mud should be here soon.

  23. 20
    Opti-caltrop

    By the way, lotus, you look like a swamp plant. My friend might be able to help you, too.

  24. 21
    Lorus

    I'm a pond plant... but I suppose I could pass for a swamp plant.

  25. 22
    Lorus

    Now you've got me curious about this friend of yours.

  26. 23
    (monologue)Homing Thistle

    (They're talking so fast. Sunflower can't get a word in either—she's already playing rock-paper-scissors with Peashooter.)

  27. 23
    (monologue)Red Stinger

    (They're talking so fast, I can't get a word in. Maybe I should find something else to do so this feels less awkward.)

Configured by this level

Entered: Mysterious Swamp — OnwardSecond Encounter

View full scene →
  1. 0
    (monologue)

    (Some zombies have already slipped through... Before searching for the mechanism, I need to eliminate them all.)

  2. 1
    Applayer

    Might you be Red Stinger? I am Applayer. I encountered Homing Thistle a short while ago.

  3. 2
    Applayer

    Homing Thistle told me you were here, so I came to offer my assistance.

  4. 3
    ——

    Now I remember! Apple Mortar told me about you!

  5. 4
    Corchid

    This is Applayer from the swamp. She's a renowned pharmacologist.

  6. 5
    Sunflower

    He developed an amazing medicine a while back.

  7. 6
    ——

    I remember now, too. What an honor to meet you!

  8. 7
    ——

    We're looking for the switch, but first we need to deal with these zombies.

  9. 8
    Applayer

    Homing Thistle mentioned the switch. I found it on my way here and took the liberty of activating it.

  10. 9
    Lily Pad

    So all we have to do now is take care of the zombies?

  11. 10
    Applayer

    Indeed. I have been studying "music therapy" of late. This is the perfect opportunity to try it.

  12. 11
    ——

    All right. Once the fight's over, we'll head straight to the exit and meet Homing Thistle.

  13. 12
    (monologue)

    (It's been so long since Homing Thistle and I went separate ways. It feels kind of strange.)

Related by story definition

Completed: Mysterious Swamp — Onward

View full scene →
  1. 0
    Opti-caltrop

    This is the friend I told you could solve our mud problem: Corchid.

  2. 1
    Sunflower

    Aww, she's so tiny! So cute!

  3. 2
    Opti-caltrop

    Well, she's—

  4. 3
    Corchid

    Stop right there, Opti-caltrop. Allow me to introduce myself: I'm Corchid—tiny and adorable.

  5. 4
    (monologue)Homing Thistle

    (She stopped Opti-caltrop before the temper flared. These two friends sure have opposite personalities.)

  6. 4
    (monologue)Red Stinger

    (Looks like Corchid stopped Opti-caltrop from blowing up... These two friends could hardly be more different.)

  7. 5
    Corchid

    I'm Corchid! Plant me in the corner of a tile, and I'll create an area where you can plant regardless of swamp terrain.

  8. 6
    Corchid

    And I can give swamp plants a boost!

  9. 7
    Lorus

    Hello, Corchid. I'm Lorus. I count as a swamp plant too, right?

  10. 8
    Corchid

    Of course you do! We'll definitely have to team up sometime.

  11. 9
    Lily Pad

    What about me? I look the part, don't I?

  12. 10
    Corchid

    I'd love to team up with you too, but you seem to work a little differently.

  13. 11
    Lily Pad

    That's right. My ability is carrying other plants.

  14. 12
    Corchid

    That could be tricky. But why don't the two of us try supporting Lorus together?

  15. 13
    ——Homing Thistle

    The map ahead is kind of a mess, and I can't make it out. Corchid, could you show us the way?

  16. 13
    ——Red Stinger

    Corky, the map's a little unclear. You're a local—could you lead the way?

  17. 14
    Opti-caltrop

    Hey, why didn't you ask me—

  18. 15
    Corchid

    Of course! Opti-caltrop and I will show you the way.

  19. 16
    Opti-caltrop

    There's a huge stretch of swamp ahead. There used to be a path through, but it's blocked now.

  20. 17
    Opti-caltrop

    You'll need to activate a mechanism to get through. I wrote its location on a rock.

  21. 18
    Opti-caltrop

    The rock should be just up ahead. Keep going and you'll see it.

  22. 19
    Peashooter

    This swamp sure has a lot of mechanisms.

  23. 20
    Opti-caltrop

    Don't say that!! This place hardly has any!

  24. 21
    Opti-caltrop

    If you ever find some white or green palace, I guarantee it'll have way more than this.

  25. 22
    Hygro Plantago

    What kind of taste does it take to fill a palace with mechanisms?

Enemy guide