This document is about: QUANTUM 2

Quantum Survivor

Level 4
Available in the Gaming Circle and Industries Circle


This sample is provided with full source code and demonstrates how Quantum can be used to create a co-op survivor game with hundreds of enemies.



Version Release Date Download
2.1.7 Feb 02, 2024 Quantum Survivor 2.1.7 Build 329

Before You Start

To run the sample in online multiplayer mode, first create a Quantum AppId in the PhotonEngine Dashboard and paste it into the AppId field in PhotonServerSettings asset. Then load the Menu scene in the Scenes menu and press Play.

Technical Info

  • Unity: 2020.3.37f1.
  • Platforms: PC (Windows / Mac), Mobile.



  • Scheduling routine for collectible entitites.
  • Usage of a multithreaded system for Characters Movement.
  • EntityView object pool.
  • Usage of physics queries injection Broadphase Queries.


  • Basic wave system.
  • Synced character powerup selection.
  • Quantum Command to add more time for powerups selection
  • Basic Bot players.

Useful Patterns

Scheduling routine for collectible entitites

This is a good approach to prevent iterating over all the collectibles every frame, thus distributing the CPU load.


int schedulePeriod = 10;
foreach (var (entity, c) in f.Unsafe.GetComponentBlockIterator<Collectible>())
  if (entity.Index % schedulePeriod == f.Number % schedulePeriod)
    CheckCollectDistance(f, entity, c);
    if (c->TTL <= FP._0)
    c->TTL -= timeMultiplier * schedulePeriod;

3rd Party Assets

The Sample includes several assets provided courtesy of their respective creators (CC-0). The full packages can be acquired for your own projects at their respective site:

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