diasurgical/devilutionX

[Issue Report]: Missiles aren't synced in multiplayer

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#8,412 opened on Jan 9, 2026

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help wanted

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Description

Operating System

Windows x64

DevilutionX version

1.5.5

Describe

Missiles are not synced in multiplayer since they are not saved to the delta. Therefore, players entering a level will not see existing missiles. This is especially problematic with the use of wall spells.

Would be fixed by: https://github.com/diasurgical/DevilutionX/pull/2787

To Reproduce

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Expected Behavior

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Additional context

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Contributor guide

Research direction
Investigate the missile delta saving function in the multiplayer sync code. Trace how other projectile types are synced and apply similar logic to missiles.
Tech stack
cpp
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70