Shadowline was an early development version of Deadlock.
Not much is known about Shadowline. It existed at some point in the transition from Neon Prime to Deadlock, in 2022-2023. It is assumed to be the first version to use the 20th Century American occult setting.
In this version, the ziplines were called shadowlines.
References
- There are voice lines of a version of the tutorial narrated by the Shopkeeper that refers to the game as Shadowline.
- One of Kelvin's Ice Path upgrade voicelines (kelvin_upgrade_power3_07.vsnd_c) says "Sometimes, you don't have acces to the shadowline."