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)
PathEasyMediumHard
Center25.923.520.7
Left18.817.015.0
Right17.015.513.6

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 on 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.

As of version 50.0 collision of towers with the track is not working correctly and towers can have portions of their footprints over the track, this is specially evident with Banana Farms.

Strategy

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Development

 
Teaser image

This map was first revealed in the BTD6 Dev Diary #2[1], 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[1]

The post implies that Silas was meant to have an ability that mitigates the ice crystals interfering with tower placement, but his only mechanic on release that affects tower placement is his ability to freeze water.

Trivia

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

  1. ↑ 1.0 1.1 Corey (Sun, 6 Jul 2025). "BTD6 Dev Diary #2". Ninja Kiwi on Reddit. Retrieved Sun, 6 Jul 2025.