The present diploma work describes the early development of digital narrative on the territory of the former Czechoslovakia in the 80's and at the beginning of the 90's of the 20th century. In that period, the text adventure game production and use were influenced by the socio-cultural and economic environment in the east-European Communist bloc, and by its following transformation into a democratic system with market economy. That brought about unique approaches to the computer game development and playing, and it also led to a formation of a cultural phenomenon of digital text games connected with the context of that time. The text deals with a brief historic development of digital game playing in the world, and a general situation in the information technologies on the territory of the former Czechoslovakia including direct participants' selected opinions. Within the framework of the present work, basic theoretical approaches have been presented, examining the adventure games genre, and especially their narrative part and the principles of intertextuality. The latter have been described using the examples of the respective Czechoslovak game production.

The ability to learn optimal control policies in systems where action space is defined by sentences in natural language would allow many interesting real-world applications such as automatic optimisation of dialogue systems. Text-based games with multiple endings and rewards are a promising platform for this task, since their feedback allows us to employ reinforcement learning techniques to jointly learn text representations and control policies. We present a general text game playing agent, testing its generalisation and transfer learning performance and showing its ability to play multiple games at once. We also present pyfiction, an open-source library for universal access to different text games that could, together with our agent that implements its interface, serve as a baseline for future research.

This paper describes the development process of an Interactive Fiction game focused on the theme oflanguage. The paper includes a brief description of the history of the genre and its definitions, a discussionabout its multiple variations and attributes, and an overview of some examples that handled similar subjects.Then it considers some of the unique properties of the written language and examines language as both ashared and subjective relationship with reality . This is followed by a description of tools and methodsadopted in the design process and how the development went — from initial research to the final concept.The results is then described, followed by the user test results and a critical evaluation. At the end, someconcluding remarks are included together with possible future developments.