Redline Protocol

About Redline Protocol

Combat takes place from a side view, with enemies approaching from the right. Your squad combines Tank, Bruiser, Sniper, Artillery, and Support classes, each with distinct automatic attacks and a manually triggered special ability. Team composition and positioning sit alongside character stats as key parts of preparation.

Recruitment uses an in-game gacha described as having no real-money purchases, and a ten-pull guarantees at least one Rare or better character. Equipment improves class-relevant stats, while armor increases maximum health. Gifts and affection provide a separate route to narrative gallery events and CG artwork.

Rotating objectives supply five daily and five weekly missions, with targets that increase as you advance. Tasks cover areas such as boss clears, healing, and damage absorbed. Abyss floors preview first-time and repeat rewards before deployment, while its shop offers profile titles and borders purchased with Marks.

PotatoeStudio lists the Unity project as version 0.3 Alpha, with English-language builds for Windows and Android. Development remains ongoing, and the developer warns of bugs and unfinished content. A campaign roadmap describes 50 stages across five chapters; that roadmap should not be read as a completion guarantee.

What to expect

• Side-view defense battles against waves approaching from the right.
• Five squad classes with automatic attacks and triggered abilities.
• In-game gacha recruitment without real-money purchases.
• Gifts and affection that unlock character scenes and gallery artwork.
• Daily and weekly missions plus Abyss rewards and profile cosmetics.

A closer look

Redline Protocol frames its cyberpunk battles around holding a line rather than moving a lone shooter through a level. The five-character formation draws on Tank, Bruiser, Sniper, Artillery, and Support roles, with automatic fire providing the baseline and player-triggered abilities adding intervention. Targeting rules give those roles practical significance: enemies favor a Tank over a Bruiser when both are roughly equally close, while Support healing selects the ally with the lowest health percentage regardless of distance. Named abilities further distinguish the roster. Vantage can chain shots after defeating a target, Riot can draw a strong enemy into a duel while temporarily improving her stats, and Pulse combines an immediate heal with continuing squad recovery.

Character development connects recruitment, experience, equipment, and affection, but these systems serve different purposes. Recruitment expands the available roster, with a guaranteed Rare-or-better result among ten pulls. Gear bonuses scale as percentages of character stats, so equipment is tied to the character wearing it rather than supplying only a fixed increase. Weapons improve attack for most roles, defense for Tanks, and healing power for Supports; armor instead adds maximum health. The profile's level-up control displays the experience needed and spends that amount. Away from these combat improvements, gifts build affection toward gallery scenes and CG illustrations. This makes character interaction a distinct progression track alongside the work of strengthening a squad.

Recurring missions and Abyss provide objectives beyond an individual campaign clear. Each reset selects five daily and five weekly missions from a broader pool, and their targets grow with progress. The supported task types include ability defeats, flawless clears, boss victories, healing, and absorbed damage, giving different squad contributions a place in the objective list. Abyss makes its next floor's rewards visible before deployment and separates initial-clear rewards from repeat rewards. Its shop also identifies the cheapest unowned cosmetic, shows the cost in Marks, and estimates the floors needed to reach it. Titles and borders appear on the friends leaderboard, making these purchases profile customization rather than another stated source of combat statistics.

The listed Windows and Android builds belong to an ongoing Unity alpha, not a completed edition with a fixed feature set. Current interface notes describe a combat display adjusted for smaller screens and stage preparation advice that offers a concrete suggestion, such as filling a squad slot, equipping available gear, or addressing flying enemies. The opening stage is described as a solo tutorial with a smaller enemy wave. Separately, the campaign roadmap outlines an expansion to 50 stages in five chapters with additional story beats; its wording is a plan rather than proof that every chapter is finished. A seasonal event is likewise announced as forthcoming in the supplied notes, not confirmed as active. These distinctions matter when assessing what the development build currently offers.

Installation & requirements

For Windows, extract the downloaded package and run its .exe file. The Android instructions call for allowing installation from unknown sources; grant that permission only for a package you trust. The supplied download links have unknown verification status.

Windows and Android.

The supplied evidence does not specify minimum hardware, operating system versions, or required storage. The game uses Unity and is listed in English.

Before updating, back up your saves and read the developer’s release notes. Save compatibility is not guaranteed unless the developer confirms it for your version.