Chained BeastsBosses · official text checked 2026-10-18
Chained Beasts bosses
Checked 2026-10-18
Featherweight named Praefectus and the Praetorian Guard in its Rome announcement. Other encounter names below come from official Steam achievement descriptions. This is a sourced encounter index, not a tested boss walkthrough.
Source note: no boss fight was tested for this guide. Steam achievement page data saved on 18 October 2026 confirms the display names, conditions, and ID pairings. The separate global percentage API supplies IDs and player unlock percentages, not the descriptions. All percentages below are the historical 2026-10-17 snapshot.
Named fights
These rows are not a count of distinct bosses: the unnamed rhino rider may overlap a named encounter, and the catapult may be part of the Praefectus fight. The snapshot does not verify that relationship or provide a complete boss roster, health values, attack timings, weaknesses, or phase-by-phase instructions.
Suggested preparation, not a tested strategy: read the in-game prompts before attempting a listed achievement interaction. An achievement condition describes a challenge; it does not prove that interaction is required or is the easiest way to win.
| Encounter or clue | What the source describes | Evidence and historical unlock % |
|---|---|---|
| Rhino-riding boss | The demo ends with a first boss who rides a rhino. | Official demo description and August 2025 playtest announcement |
| Goliath | Arrange for its leap to kill another opponent. | Deep Impact: official Steam condition; 21.0% |
| Beastmaster Barca | Have the Rhino trample Barca to death. | Stampede: official Steam condition; 19.2% |
| Flail Master | Use the Flail Master’s flail to launch him. | Turning the Tide: official Steam condition; 10.4% |
| Mangonel / catapult | Destroy the catapult before Praefectus retreats; another challenge involves a siege-fire kill. | Official Steam conditions: Clearing the Skies 12.9%, Don’t Look Up 7.4% |
| Praefectus | Rome boss accompanied by the Praetorian Guard. | Official platform and Rome announcement, 15 September 2026 |
A launch-week bug report, not a strategy
A Reddit RSS excerpt saved in the research snapshot says “i always start at act 2 boss every time.” This is an unreplicated player report, not confirmation of a bug, a skip, or a workaround. No official response was present in the saved excerpt.
The official condition for Who’s The Boss asks for a boss kill within 10 seconds of first damaging it (1.4% player unlock proportion on 17 October 2026). That challenge does not establish the usual length of a fight.
Frequently asked questions
Who is the last boss?
Praefectus, in the Rome chapter, with the Praetorian Guard. Named in the 15 September 2026 announcement.
Chained Beasts release dateHow do you beat Beastmaster Barca?
The official Stampede condition describes having the Rhino trample Barca to death. This guide has not tested how to trigger it and does not have a verified phase-by-phase strategy.
Does the Act 2 boss have a bug?
A saved player excerpt reports starting at that boss. It was not reproduced or confirmed by the studio in this research snapshot.
Chained Beasts troubleshootingSources
- Official Steam achievements — Official names, descriptions, and ID pairings saved 2026-10-18. Documented objectives, not tested boss tactics.
- Steam global achievement percentages — Only internal IDs and player unlock percentages; table percentages retain the 2026-10-17 snapshot.
- Featherweight announcements on Steam — 15 September 2026: Rome, Praefectus, and the Praetorian Guard; earlier demo announcements describe the rhino rider.
- Steam demo description — Carthage and the rhino-riding first boss; a content reference, not proof of current demo availability.
- Player report: starting at Act 2 boss — Only the RSS excerpt was saved; no reproduction or official fix verified.