Lost Crevasse

This article is about the map in BTD6. For the area in Frontier Legends inspired by this map, see Lost Crevasse (Frontier Legends).

Lost Crevasse

Difficulty	Intermediate
Music	Winter Nights Chilled
Default Co-op division	Free-for-all
Introduced	Version 50.0
Entrances	2	Exits	2
Junctions	2	Water?	Yes

Path lengths (RBS)
Path		Easy	Medium	Hard
Center		31.5	28.6	25.2
Left		21.8	19.8	17.4
Right		20.8	18.9	16.6

Lost Crevasse is an Intermediate map in Bloons TD 6, introduced in version 50.0. It takes place inside an icy cavern where Bloons split into multiple groups as they progress, but they move slower than usual, and is surrounded by walls where bouncing projectiles can excel, but ice crystals prevent towers from being placed on some places.

Layout

Lost Crevasse's layout consists of a large land mass in the upper section surrounded by the Bloon's path and and a lower section divided in two parts separated by a column of crystals which block line of sight. The left side has more land area and the right side contains a lake where water towers can be placed. It has three paths that Bloons can take:

• Path 1 (Center) starts on the left entrance moving clockwise around the land until the right junction, here the Bloons keep moving around the top section until the left junction where they head towards the the left exit. Boss Bloons always take this path.
• Path 2 (Left) starts from the right entrance moving anti-clockwise around the upper section until the left junction, where they keep moving towards the left exit.
• Path 3 (Right) starts from the left entrance and continues clockwise, in the same way as Path 1, but when the Bloons reach the right junction, they will continue towards the right exit.

All three paths are active at the same time and new spawned Bloons will alternate between them.

Strategy

This strategy section is empty or incomplete. See the strategy guidelines for more information on how to write strategy sections.

This section was last updated for: version 54.3

Lost Crevasse is among the most difficult Intermediate maps, due to the simultaneous lanes that switch patterns every round and short lane lengths, even with this map's artificially slower Bloon speed. Take care to avoid relying exclusively on First targeting, and use micromanagement if needed. The central region is an important location for most of your defenses to cover most of the map.

Recommended towers and upgrades

This section is incomplete. You can help out by expanding it. The editor who added this notice elaborates: What other towers excel on this map? Psi is not so excel because intermediate leveling (need the lvl14 on advanced and higher). TBS, Aknight, Glord, and Senchamp have been suggested, but not confirmed.

Name	Portrait	Reasoning
Sauda		The artificially slower lanes and the chokepoint at the front of the map allows Sauda to excel in the early-game, and retain great power in the late-game when paired with stun support such as Relentless Glue. She also benefits from the overlapping lanes of this map, dealing double damage on the right path before its junction and the left exit lane, and triple near the entrance.
Super Glue		The short portion of the map where towers perform optimally makes it critical to stalling Bloons and blimps there. Super Glue's stunning splats effectively keeps masses of Bloons and blimps locked in place, and allows Sauda to deal massively increased damage to stunned targets.
Sniper Monkey		The highly divergent nature of the map's lanes make leaking Bloons relatively common. Sniper Monkeys when placed to the right of the small crystal above the crystal column can see both sides of the map with fairly low line-of-sight blockage.

Update history

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Version 50.1

•  Fixed spots where towers could be placed in locations they are not supposed to (bug fix)
•  Removed duplicate Pre-game Prep spikes on all lanes (undocumented) (bug fix)

Version 52.0

•  Bloon speed reduced
  •  Center path RBS increased (Hard RBS) ― 20.7 → 25.2
  •  Left path RBS increased (Hard RBS) ― 15.0 → 17.4
  •  Right path RBS increased (Hard RBS) ― 13.6 → 16.6

Gallery

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

Development

Teaser image

This map was first revealed in the BTD6 Dev Diary #2, where Ninja Kiwi stated that the map took inspiration from Silas, who was released in the same update. They also presented an early image of the map with slightly different layout compared to the final release. The main differences are the lack of the final bends towards the bottom of the map, the presence of ice crystals on the left and right sides and a slightly different placement for the water area, alongside simpler visuals in general, specially for the ice crystals in the middle.

[...] Working hard has kept us warm as we show you the first look at the upcoming map: Lost Crevasse

This cool cavern was inspired by our new upcoming ice hero, you may have heard about around the banana stands.

A secluded place that the ice hero enjoys visiting during his time wandering, Lost Crevasse has an asymmetrical split path that shuffles Bloons into new groups as they move through the map. The walls at the edge of the path will eat projectiles but offer good opportunities for bouncing projectiles and zone-based damage. Large ice crystals separate potential tower placement, if only there were a new ability that could help overcome this hurdle...
— BTD6 Dev Diary #2

The "new ability that could help overcome this hurdle" may refer to Silas's mechanic of emitting his attack from other Ice Monkeys, though it did not ignore line of sight blockers until a bug fix in version 50.2.

Trivia

• In the update preview video for version 50, this map was incorrectly named "Frozen Crevasse".

In other languages

Language	Text	Notes
Arabic	الصدع المفقود	—
Danish	Fortabt gletsjerspalte	—
German	Verlorene Gletscherspalte	—
Spanish	Grieta Perdida	—
Spanish (Latin America)	Grieta perdida	—
Finnish	Kadonnut railo	—
French	Crevasse perdue	—
Italian	Crepaccio perduto	—
Japanese	忘却のクレバス	—
Korean	방황의 빙하동굴	—
Dutch	Verloren kloof	—
Norwegian	Fortapt bresprekk	—
Polish	Zaginiona Szczelina	—
Portuguese (Brazil)	Fenda Perdida	—
Russian	Затерянный провал	—
Swedish	Förlorad Glaciärspricka	—
Thai	รอยแยกที่หายไป	—
Turkish	Kayıp Yarık	—
Chinese (simplified)	失落冰隙	—
Chinese (traditional)	迷失裂谷	—

References

• Path lengths sourced from the BTD6 Index

Navigation

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