Grim Trials has seven major Sinful Soul bosses: Acedia, Avaritia, Gula, Ira, Luxuria, Invidia and Superbia. Each has a dedicated Virtue achievement for defeating it, and the seven encounters form a central part of Avelin’s Purification. All seven individual boss guides are now published, with Acedia receiving the deepest mechanically verified treatment because it has explicit official balance documentation.
All Grim Trials bosses
The complete seven-name list is verifiable through the released achievement and trophy sets. The achievement names pair each defeated Sinful Soul with a Virtue.
| Boss | Achievement / Trophy | Requirement | Guide status |
|---|---|---|---|
| Acedia | Virtue of Diligence | Beat Acedia | Published |
| Avaritia | Virtue of Charity | Beat Avaritia | Published |
| Gula | Virtue of Temperance | Beat Gula | Published |
| Ira | Virtue of Patience | Beat Ira | Published |
| Luxuria | Virtue of Chastity | Beat Luxuria | Published |
| Invidia | Virtue of Kindness | Beat Invidia | Published |
| Superbia | Virtue of Humility | Beat Superbia | Published |
Why the bosses matter to Avelin’s story
The bosses are not simply seven unrelated arena checkpoints. Developer story material explains that the enemies and bosses are associated with Avelin’s past, while her larger objective is Purification. That makes boss progression part of both the roguelite structure and Avelin’s personal story.
The official store description describes Trial Grounds built from hex-grid arenas filled with monsters, traps, Sinful Souls and bosses. A boss attempt therefore begins before the boss health bar appears. The equipment you craft, Skill Tree configuration you bring into the run, Blessings you acquire and resources you preserve on the way all affect the encounter.
How to prepare for any boss
Build for consistency before chasing a perfect damage combination. Learn your primary melee weapon’s commitment and reach, then use the crossbow to maintain pressure while repositioning. The August 24 balance patch adjusted ranged combinations, ranged weapon cooldowns and the Anubis Blessing, so old ranged setups should not be copied blindly.
Preserve movement space. Version v1.0.20260829 reduced Trial Ground obstacles that could interrupt dashes and improved melee attack telegraphing. Those changes help, but they do not replace positioning.
Use the dual-weapon system. Melee is valuable when a punish window is clear, while ranged attacks help you avoid turning every unsafe phase into zero damage.
Acedia: the best-documented boss
Acedia currently has the strongest public mechanical documentation because the encounter appeared in the Demo and received multiple official balance passes. The June Demo update capped spawned minions, reduced phase-two Eye Hazards, added an Eye Hazard visual cue and increased idle time between attacks. After release, v1.0.20260829 explicitly rebalanced Acedia’s summoned enemies. See the Acedia boss guide for the patch-aware strategy.
All seven boss guides are published
The full set of individual boss pages is now live: Acedia, Avaritia, Gula, Ira, Luxuria, Invidia and Superbia. Acedia has substantially more officially documented mechanics than the later bosses, so later pages deliberately separate verified facts from general combat strategy rather than inventing exact phase data.
Superbia and the end of the boss route
Superbia is tied to the Virtue of Humility achievement. A third-party released-game trophy route treats Superbia as the final boss and recommends completing relevant side content before defeating it when pursuing the True Ending. That completion-route claim is useful, but it remains labeled as third-party evidence rather than an official developer statement. See the Superbia boss guide for the spoiler-light preparation notes.
Boss rooms and the current patch
The August 29 update added a clearer visual cue before entering a boss room. The patch also reduced movement obstacles that could catch dashes and changed melee telegraphing to address attacks that appeared to continue tracking after a dodge.
Boss achievements and completion
Steam lists 29 achievements, and seven are direct boss-defeat objectives: Diligence for Acedia, Charity for Avaritia, Temperance for Gula, Patience for Ira, Chastity for Luxuria, Kindness for Invidia and Humility for Superbia. These achievements confirm boss identities, but not exact phase counts, drops or recommended builds.
Official combat video
The embedded official release-date trailer is useful for overall arena speed and weapon switching. Individual boss pages only embed focused videos when they genuinely clarify that encounter; generic trailers are not used as substitutes for boss tutorials.
Boss FAQ
How many bosses are in Grim Trials?
There are seven major sacrilegious bosses / Sinful Souls.
What are the seven boss names?
Acedia, Avaritia, Gula, Ira, Luxuria, Invidia and Superbia.
Are all seven boss guides published?
Yes. The site now has individual guides for all seven bosses.
What achievement is tied to Superbia?
Virtue of Humility, with the requirement to beat Superbia.
Is Superbia the final boss?
A third-party released-game trophy route treats Superbia as the final boss. The site keeps that claim labeled as third-party evidence until stronger official or direct-test documentation is available.
Is there one best build for every boss?
No verified universal build is recommended. Equipment, Skill Tree choices and randomized Blessings all influence a run.
Related Grim Trials guides
Sources & verification
- Grim Trials on Steam — seven-boss count and combat systems.
- Steam achievements — released boss achievements including Virtue of Humility.
- XboxAchievements — boss achievement list.
- PlayStationTrophies — PlayStation trophy list.
- Gamerbase trophy guide — third-party route treating Superbia as the final boss and discussing True Ending preparation.
- Steam Community updates — post-launch boss-room, movement and telegraphing changes.