11 bit Studios: This War of Mine: Under the hood

1. THIS WAR OF MINE
Under The Hood

2. Who we are?
11 bit studios
Warsaw, Poland

3. - Lead programmer of This War of Mine
and Sleepwalker`s Journey
- Lecturer at
Warsaw Film School
- Musician - amatuer
Who am I?
@dagenothgrzegorz.mazur@11bits.com

4. What is This War of Mine?
Game (or experience) about civilians trapped in a
modern city under siege.
They will face hunger, diseases and violence.
They want to survive war.

5. Beginning of production

2 years of development

TWOM prototype was based on other game

Inspiration: diary of man who survived siege of
Sarajevo

6. Team

4 guys at the beginning
(directors + programmer + designer)...

...12 core guys at the end
There were 2 key guys:
Michał Drozdowski Przemek Marszał
design director art director

7. Technology

Liquid Engine

Platforms: PC, Mac, Linux, X360, PS3, PS4,
iOS, Android, BlackBerry, Tizen, SteamOS…

We develop it further with every next game

8. Liquid Editor

9. This War of Mine
Game about ordinary people
in a city under siege

10. Human
AI
Model
Life parameters
Emotions
Character

11. Model
- All models in a game are scans of us, our
relatives and friends
- Scans of models and animations made with two
Kinects + ReconstructMe

12. AI

Behaviour Trees

13. AI

We used Behaviour Trees for almost everything:
 Player characters behaviours
 NPC behaviours
 Simple cutscenes

Programmer: node preparation

Designer: composition and configuration of tree

Large library of behaviours

14. Life parameters

Every person is described with several
parameters(hunger, power, wounds, sickness etc.)

Mutual influence

Parameter value → person state

Deterioration of states

15. Life parameters

16. Emotions

People react to events

Two perspectives:
– Participant of event
– Observer of event

Trauma – emotional reaction

17. Character and Psyche

Individual reaction based on character

Psyche evolution

18. Data sheets

Technically emotional parameters form large
multidimensional matrix

We were loading them from data sheets

Its far easier for designers to work on data
sheets instead of windows in editor

Designer can implement additional rules and
dependencies in data sheet by himself

19. World

We separate work of designers and
artist while building scenes

20. Functional prototype

21. Functional prototype

22. NPC placing + Smart Items

Part of AI is placed in scene instead
of person

23. Graphics

24. Thank you!
grzegorz.mazur@11bits.com @dagenoth