Spillway

Spillway

Difficulty	Advanced
Music	Sunset Samba
Default Co-op division	Vertical
Introduced	Version 12.0
Entrances	4	Exits	4
Junctions	0	Water?	Yes

Removables and gizmos
Inflatable wall: $2000 (×4)

Path lengths (RBS)
Path		Easy	Medium	Hard
Top left		27.9	25.3	22.3
Top right		29.5	26.8	23.6
Bottom left		29.5	26.8	23.6
Bottom right		28.1	25.6	22.5

Spillway is an Advanced map in Bloons TD 6, introduced in version 12.0. It takes place in a building, possibly a factory or power plant, containing toxic and radioactive substances.

Layout

Spillway has 4 entrances and 4 exits, with all lanes active on each round and converging at the center loop. After entering the loop, the Bloons travel counterclockwise for 1.75 loops before exiting on the lane 90° clockwise from where they spawn. There is a radioactive barrel in the middle that can fit one small-footprint tower, such as the Dart Monkey. There are four valves that block most towers from reaching the middle, and they can be removed for $2,000 each.

Strategy

Despite the sight blockers preventing most towers from reaching the middle, Spillway is not a particularly difficult Advanced map. The long time Bloons spend in the middle create ample time for towers that do reach there, such as Mortar Monkeys, to defend against the Bloons. In addition, the $2,000 to remove the valves is not a steep cost in the later rounds, and doing so places many more towers into a usable spot. In CHIMPS, start the game with a Ninja Monkey on the center barrel. It can save into a 1-0-0 Wizard Monkey at base, or into a Hero like Psi at 2-0-1.

Name	Portrait	Reasoning
Pop and Awe		Thanks to it mostly covering the central loop with the 2-5-0 crosspath, Pop and Awe, already solid on most maps, particularly excels here. Its main weakness against DDTs is covered due to the loop allowing it to hit many of them at once. Use Striker Jones with Pop and Awe, as his Concussive Shell stun, buffs to Mortars' attack speed, pierce, and blast radius to full coverage of the central loop, and Artillery Command resetting Pop and Awe's ability and becoming a Homeland Defense for Mortars at Level 20 all provide powerful assistance. Use Relentless Glue as well, even if it requires removing a valve, to add additional stun synergy.
Archmage		With Guided Magic, Wizards are the cheapest option to attack Bloons in the central loop early game, and building into a 5-2-0 Archmage lets one deal great damage through the entire game. Middle crosspath is preferred here for all stages, since Bloons pass through the Wall of Fire multiple times and projectile speed is not an issue here.
Carrier Flagship		Its global range allows it to deal significant damage to Bloons and blimps all throughout the map even with the valves present. Its platforms also put towers closer to the central loop and removes the need to open the valves, as towers on the top platform can see over them.
The Biggest One		Due to the shape of the map and size of the mortar shells, you can just have TBO target the middle of the map for devastating damage. Naturally, pairing it with Striker Jones boosts the damage potential.

Update history

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Version 17.1

•  Removables no longer display white squares instead of sparks when removed (bug fix)

Version 19.0

• No longer causes the game to crash when attempting to play on this map

Version 46.2

•  Dartling Gunners are less likely to shoot through walls (bug fix)

Gallery

• 
  Easter theme
• 
  Fireworks theme
• 
  Halloween theme
• 
  Holiday theme
• 
  Island statue

In other languages

This section was last updated for: version 48.1

Language	Text	Notes
Arabic	مفيض	—
Danish	Afløbskanal	—
German	Abfluss	—
Spanish	Derrame	—
Spanish (Latin America)	Derrame	—
Finnish	Ylivuotokanava	—
French	Déversoir	—
Italian	Piena	—
Japanese	放水路	—
Korean	배수로	—
Dutch	Afvoer	—
Norwegian	Forgiftning	—
Polish	Przelew spływowy	—
Portuguese (Brazil)	Vertedouro	—
Russian	Водослив	—
Swedish	Utsläpp	—
Thai	ทางระบายน้ำ	—
Turkish	Döküntü Yolu	—
Chinese (simplified)	泄洪道	—
Chinese (traditional)	洩洪道	—

References

• Path lengths sourced from the BTD6 Index

Navigation

v • t • e Maps in Bloons TD 6
Beginner Monkey Meadow • In The Loop • Skull Tweak • Three Mines 'Round • Spa Pits • Tinkerton • Tree Stump • Town Center • Middle of the Road • One Two Tree • Scrapyard • The Cabin • Resort • Skates • Lotus Island • Candy Falls • Winter Park • Carved • Park Path • Alpine Run • Frozen Over • Cubism • Four Circles • Hedge • End Of The Road • Logs Intermediate Lost Crevasse • Luminous Cove • Ancient Portal • Sulfur Springs • Water Park • Polyphemus • Covered Garden • Quarry • Quiet Street • Bloonarius Prime • Balance • Encrypted • Bazaar • Adora's Temple • Spring Spring • KartsNDarts • Moon Landing • Haunted • Downstream • Firing Range • Cracked • Streambed • Chutes • Rake • Spice Islands • Protect The Yacht* Advanced Mushroom Grotto • Party Parade • Sunset Gulch • Enchanted Glade • Last Resort • Castle Revenge • Dark Path • Erosion • Midnight Mansion • Sunken Columns • X Factor • Mesa • Geared • Spillway • Cargo • Pat's Pond • Peninsula • High Finance • Another Brick • Off The Coast • Cornfield • Underground Expert Tricky Tracks • Glacial Trail • Dark Dungeons • Sanctuary • Ravine • Flooded Valley • Infernal • Bloody Puddles • Workshop • Quad • Dark Castle • Muddy Puddles • #Ouch • Blons*
* Not playable in standard solo or Co-op play