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

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DevGAMM Conference

Presentations & Public Speaking

Who we are?
11 bit studios
Warsaw, Poland

- 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

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.

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

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

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

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

Human
AI
Model
Life parameters
Emotions
Character

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

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

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

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

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

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

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

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

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

This talk discusses how components in a game world, from both a systemic design perspective, and from an actual content perspective, can carry meaning relevant to individual players. The discussion is grounded in work with a massively multi player online (MMO) prototype where players in guided play-tests created their own opponents that they battled in groups of three. The opponents are called Manifestations, and can be compared to the “boss monsters” that in adventureand role-plying games pose the greatest challenges in terms of tactical game play, or battle. When creating Manifestations players define how these shall behave in play, and what they say under different circumstances. The game play mechanics in the world is centered on emotions and social relations. One of the design goals in the creation of the prototype was to cater for a system wheretactical game play can be closely tied to the potential narrative contents. The Manifestations players created in the play tests were of four main categories; reflections of persons they had complicated relationships to in real life, difficult situations, abstract concepts, or purely fictional entities. In several cases players brought material into the game that had personal meaning to them. These meanings were developed further when players saw how their Manifestation behaved within the rule system of the world. For example, one player created a Manifestation of an anticipated exam, while another made a Manifestation called “Mother”. The Mother cast spells called “Focused Aggression” and “Cold Ripple of Fear”. It was able to perform acts called “Blame”, ”Threaten”, and “Disagree”. The group experimented with tactical choices, while reasoning about the Mother’s potential motivations. They managed to overcome the Mother by alternating between giving each other resistance and casting spells, the winning stroke being a rapid series of spells called “Forgive”. The talk was given at ITU in Copenhagen April 24, 2012 in the Game Lecture series. http://game.itu.dk/index.php/Game_Lectures

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