Immunatio

Using #stayathome as an opportunity to write a retro NES game about battling pandemic. I decided to sell it on a cartridge and in the form of rom files, giving all earnings to Polish charity called WOŚP.

Below you can find youtube review by Korpokrowa ( it's in Polish ):

Media

Game got some recognition in local Polish media

• arhn.eu
• wykop.pl
• radiokampus.fm
• gry.interia.pl
• graczpospolita.pl

Authors

• Programming: Roman Subik.
• Graphics: RETHUNTER, Roman Subik, Dorota Subik.
• Music: ‪Håvard Handergård.
• Uses ggsound music engine by Derek Andrews
• Testing and bug reports: Maciej Jaszak, Michał Igel.
• Was released on a cartridge Krzysio Cart by Krzysztof Bałażyk.
• Title idea: Tomasz Nabagło.

MOD

Mariusz Jałyński has moded this game, changing all the graphics and giving it a much darker vibe. I highly recommend you to try it: https://raw.githubusercontent.com/RomekRJM/nesdemia/master/nesdemia_mod.nes

Version history

1.0 - 03.02.2021

Organisational:

• Game was released on a Krzysio Cart cartridge prepared by Krzysztof Bałażyk.
• It was sold as a cartridge and roms. All money gathered went to charity WOŚP.
• Game was promoted in the media: wykop.pl, arhn.eu and some other portals.

Enhancements

• Background of each level changes based on mission objective.
• Password screen now more descriptive.
• Added game ending screen.
• You can leave password screen by pressing select.
• Added more contributors to credits.

Bug fixes

• Game on some occasions was giving the player 9 lives after the last live was lost.
• Fixed level loading algorithm, which caused display artefacts after level 22.
• Decreased time beetween last hit and pre level/game over screens as people believed it was a bug.
• Fixed audio and joypad conflict, which was causing occasional right arrow presses in the Mesen emulator and some consoles.

0.4 - 04.01.2021

Enhancements

• Game now has 32 levels, most of them procedurally generated.
• Added animated main menu graphics by RetHunter.
• Better lung and powerups graphics by RetHunter.
• Added more contributors to the credits.

Balance

• Player now has 3 lives.
• New round no longer starts where the old one finished.
• Increased attributes prices in the shop.

Bug fixes

• Fixed level counter.
• Prices are now always correct on the newly displayed shop screen.
• Header HUD icons don't display when the player is at the top of the screen.
• Fixed artefact when displaying "WRONG" on password screen.

0.3 - 21.12.2020

Enhancements

• Speed, attack and luck bought in the shop improve player abilities.
• Palette reload in NMI. Menus look better.
• Display mission objective on pre level screen.

Bug fixes

• Fixed artefacts on game over and pre level screens.
• Improved collisions with power ups.
• Pre level screen correctly displays level number.
• Fixed collision detection with virus when player does not move.
• Music does not stop anymore, when a new level is loaded.
• Credits does not include main menu options when opened multiple times in a row.
• Improved display area on real TVs.
• Fixed load game functionality.
• Removed background from fonts in menus.

0.2 - 11.11.2020

Enhancements

• Added support for GGSound engine by Derek Andrews.
• Game has music composed by ‪Håvard Handergård.
• Added shop.
• New credits screen.
• Save/load functionality with passphrases.
• New level introduction screen.

Balance

• Removed difficulty levels as they did not have much sense at this stage.

0.1 - 27.07.2020

• First playable version with 5 levels.
• Can be completed.