A companion, not a replacement
Grand Summoners has a lot going on — hundreds of units, thousands of equips, complex buff and debuff interactions, and a meta that shifts with every new banner. GS Companion exists to make that easier to navigate.
The goal has always been the same: give players a single place to look things up, plan their teams, and understand what's actually happening in their party. No login required, no ads, just the tools.
Team Builder
Build teams and see every buff, debuff and arts-gen interaction resolved with real stacking rules.
DMG Calculator
Per-hit damage with team buffs, debuffs, crits and elements filled in from unit kits.
Unit Compendium
Full kits, stats, equip slots and true weapons for all 426 Global units.
Equips
1,711 equips with their skills, passives and where to get them.
Fusion Equips
All 178 Grand Crusade Fusion Equips with their skill ranges, Fusion Types and Unique Equips.
Crests
All 138 crests with each level's effect, the Crest Palace unique crests and where they drop.
Tier Lists
The Community Tier List made from every player's list, the GSOD (Grand Summoners Official Discord) Tier List and Nuking Tier List, and Quasar's Tier List.
Stage Guides
Crest Palace and Giant Boss hazards, recommended units and a team checker.
Guides
The community guide directory from the GSGL Official Discord Advisor Team.
News
Grand Summoners announcements from the official Discord and GS Companion patch notes.
Wallpapers
Desktop and phone wallpapers: pixel-art scenes with your units, unit art, battle sprites and icon boards.
My Box
Mark the units you own, then filter and build teams from your box.
My Teams
Save teams with the stage you cleared and your clear time, and share them as an image.
My Stats
Track crests, Mines and Grand Crusade progress, and share it as an image.
Account
Sign in with Discord to keep your box, teams, stats and companion on every device.
Started as a personal project
GS Companion started out as a spreadsheet — a way to keep track of unit kits and work out team synergies without having to dig through the wiki every time. It grew from there.
The site is built and maintained by a single player, Jesse. Unit and equip data and artwork come from the game itself; tiers, reviews and the changelog from grandsummoners.info, guides from the GSGL Official Discord Advisor Team, and Fusion Equip data from the Grand Crusade Guide by jeffers and .phex, and it's kept up to date as new units and content are added. Everything is free to use, and always will be.
Special thanks to Monokhrome for help with game mechanics, guides, fixes and ideas.
Fan-made, not affiliated
GS Companion is an unofficial fan tool and is not affiliated with, endorsed by, or connected to Good Smile Company, NextNinja, or any official Grand Summoners entity.
Grand Summoners and all related names, characters, and assets are the property of their respective owners. All game data presented here is sourced for informational purposes only.
For questions or data corrections, email gs.companion.support@gmail.com.