Dive into the thrilling world of Scarlet Girls, an innovative Idle RPG where you lead a squad of technologically enhanced mecha waifus known as "Stellaris." Set in the 119th year of the Old Euro Calendar, humanity teeters on the brink of extinction due to mutations that have given rise to formidable beings. Your mission is to recruit and train these mecha girls to combat the menacing catastromechs and restore peace to Earth. This beginner's guide will walk you through the essential game mechanics and modes to enhance your account's power and progression.
Understanding the Combat Mechanics of Scarlet Girls
The gameplay of Scarlet Girls revolves around an Idle combat system, perfect for those who prefer a more relaxed gaming experience. Battles unfold in a turn-based format, with each character's turn dictated by their Speed stat. A round concludes once all allies and enemies have acted. You can deploy up to five characters into battle, with features like Quick Dispatch automatically optimizing your squad based on the strength of your characters. Once your lineup is set, sit back and enjoy the visually stunning animations accompanying each Stellaris's unique abilities.
Stellaris come equipped with both active and passive abilities that automatically trigger in combat, each with its own cooldown period. Crafting a synergistic team is key to overcoming your foes. The battles are real-time, leaving no room for manual interference, so the focus shifts to building powerful teams and strategic line-ups that leverage each character's strengths.

Each Stellaris is categorized into one of four classes, each with distinct roles:
- Paladins – Boast the highest armor stat, acting as frontline defenders to absorb enemy attacks and protect their teammates.
- Support – Specialize in healing and supportive abilities, providing essential utility from the backline.
- Devastator – Masters of heavy firepower, designed to unleash devastating energy damage on enemies.
- Assaulter – Experts in close combat, wielding bladed weapons to deal physical damage and dismantle opponents.
Echo – The Gacha System of Scarlet Girls
Recruitment of new Stellaris is facilitated through the Echo system, a gacha mechanism that offers characters of varying rarities: R, SR, SSR, and SSR+. Higher rarity Stellaris come with superior base stats and more potent abilities, crucial for turning the tide in your favor during battles. At launch, the "Normal Echo" banner is available, allowing players to summon R to SSR Stellaris using Echo tickets or Diamonds. An SSR character is guaranteed within 40 summons, and each summon earns you 20 echo points. Accumulate 2000 points, and you can select an SSR character from one of four elemental banners (excluding Nebula). The recruitment probabilities are as follows:
- R Stellaris – 19.979% chance per character
- SR Stellaris – 2.667% chance per character
- SSR Stellaris – 0.133% chance per character
- SSR+ Stellaris – 0.010% chance per character
For an enhanced gaming experience, consider playing Scarlet Girls on a larger screen using BlueStacks on your PC or laptop, complete with keyboard and mouse support for more precise control.