How to Play Stellar Affinity

Stellar Affinity casts you as captain of a ship that, according to official copy, seems powered by the legendary idea of generating electricity with love. Also known as 성간의 유대 / 星慾姬絆, the EROLABS title launched 29 July 2026 as an adult anime idle bullet-hell RPG: you raise relationships with the young ladies aboard, convert that intensity into ship energy, shape energy into divine artifacts, then clear planetary docks with a focused squad. This page is the first systems map — not a day-by-day calendar (that is beginner week) and not a banner spend sheet (that is gacha & summon).

Watch the embedded launch gameplay capture once, then match what you see to the loop below.

The core loop in six steps

1. Login and claim — Open mail for launch packs such as star-fragment gifts, day missions, and any active codes. Keep the seven-day carnival board visible.
2. Bond on two tracks — Raise spiritual Hime Bonds and physical Cumpanions. See Hime Bonds and Cumpanions so you do not treat intimacy as optional flavor.
3. Convert energy — Affection-fed ship energy becomes combat modules. Practical conversion rules live in artifacts & energy.
4. Fight on two tempos — Active bullet-hell stages for story walls; idle / offline harvest for mats. Schedule both in combat & idle.
5. Dock and clear — Each planetary stop is a self-contained adventure. Route habits are in planet walkthrough.
6. Upgrade with a priority list — Feed mats into a small core using progression priority and best teams, then repeat on the next dock or current event.

If any step feels optional, your account will stall on the next hard node. Bonds without stages leave energy unused. Stages without bonds leave artifacts weak. Pulls without a core leave tickets homeless.

Stellar Affinity Gameplay - Official Launch

First-hour checklist

• Finish the tutorial without dismissing system unlock popups; many carnival tasks reference those unlocks later.
• Set language if needed (English client, Korean listing 성간의 유대, and other EROLABS options).
• Create and bind an EROLABS account before you invest bonds or cash — guest progress is easy to lose during download & PC troubleshooting.
• Skim reroll before burning the newbie recruit rate-up on a throwaway mood pick.
• Bookmark how to redeem codes and log strings in the codes tracker.
• Open the bond checklist so Talk / Gift / Mission ticks become habit on day one.

What “idle bullet-hell” actually means here

Combat showcases the payoff of artifacts and team synergy: pattern-heavy shooting stages where positioning and burst windows matter. Idle systems keep the ancient ship harvesting while you are offline so upgrade fuel accumulates between sessions. Menus are still where you win long-term — bond screens, energy conversion, event shops, and banner choices. Captains who only fight starve the ship of affection energy. Captains who only bond bounce off dock bosses. Balance both tempos instead of picking a favorite fantasy.

Launch free power you should not ignore

Marketing around launch highlighted several account accelerators. Treat them as part of “how to play,” not as separate FOMO noise:

Lever	How it changes the loop
Newbie recruit rate-up	Lock one preferred carry early instead of random standard pulls
~200 cumulative login pulls	Calendar of free summons — claim daily, spend with a plan
Seven-day carnival	Forces a mix of clears, upgrades, and bond actions
Star-fragment mail (~5000 class packs)	Soft mats for early upgrades — verify name in-client
Story free six-star core path	Dock progress cultivates a designated girl; skipping story has a real opportunity cost
CBT 200% star diamonds	Only if you prepaid on the same account during elite CBT

Common beginner mistakes

Mistake	Better approach
Upgrading everyone equally	Follow progression on a 3–4 girl core
Ignoring either bond track	Daily gifts plus scenes on Hime Bonds and stage-ups on Cumpanions
Blind multi-pulls on day one	Read gacha & summon and tier list first
Skipping carnival bond tasks	Tick them on mains only during beginner week
Retrying one boss for an hour	Raise bonds and artifacts before raw grinding
Playing on a stuck client build	Fix updates via download & PC

Account goals after the tutorial

By the end of your first long session you want:

1. One written carry target (newbie recruit or keeper from reroll).
2. Bond meters moving on that carry and one support.
3. At least one artifact conversion completed so you have felt the energy → combat bridge.
4. One planetary dock node cleared beyond pure tutorial rails.
5. Idle harvest parked before you close the client.

Those five proof points mean you understand Stellar Affinity, not merely that you clicked through cutscenes.

Where to go next

• Beginner week for the day-by-day carnival and login plan
• Planet walkthrough when story walls appear
• Team builds once your roster has choices
• Items hub and currencies before spending cash packs
• Guides hub if you need a routing table
• Review for expectations about tone and grind

Master the loop once. Every later banner, dock, and carnival week becomes a variation on affection, energy, artifacts, and focused fire — not a brand-new game.