Game for Master System

VersionDateByDownloadSource
1.0027 Mar 2016SteveProXNA3DCity-SMS-1.00.zip (18KB)3DCity-SMS-1.00-src.zip (81KB)

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Competition Entry

This was a competition entry in 2016

Version
1.00
Platform
SMS
Type
Game
Released
20160327
By
SteveProXNA
Screenshots
2
Source
separate
ShowOldVersions
false

:ForumTopic:15984

3D City

Classic 8-bit Shoot 'em up built for the Sega Master System

INTRO

3D City is a simple "Shoot 'em up" video game originally programmed by StevePro Studios in New Zealand, January 1988. The game was written using BASIC programming language built on the Sega SC-3000 [source code: http://bit.ly/1n1oEk1].

Inspired from previous posts on Sega Console Programming and z88dk Programming Setup [steveproxna.blogspot.com], 3D City was the impetus to build an 8-bit video game in C / Z80 assembler to target the Sega Master System.

INSTRUCTIONS

Simple! Move target and shoot all enemy ships before they kill you. 4x misses and it is Game Over. Hint: hold controller Button2 down while moving target slows target down for more focused attack.

TOOLS

Programming
z88dk
Graphics
BMP2Tile
Music
Mod2PSG2
Assembler
WLA-DX
Disassembler
SMS Examine
Emulators
Fusion + Meka

SOURCE CODE

http://github.com/SteveProXNA/3Dcity

ROM HACKING

You can hack this ROM! Download and dump 3Dcity.sms into Hex Editor, e.g. HxD, and modify the bytes:

- 0x00C0	Death	Non-zero = invincibility!
- 0x00C1	Level	0=easy (default)  1=hard.
- 0x00C2	Enemy	0=3x enemies else 1 or 2.
- 0x00C3	Music	0=music on otherwise off.
- 0x00C4	Sound	0=sound on otherwise off.
- 0x00C5	Tiles	0=tiles scroll yes else no.
- 0x00C6	Stars	0=stars flash yes else no.

CREDITS

Special thanks to: haroldoop, Maxim, Martin, Ville Helin, Bock + Steve Snake

COMPANY BIO

StevePro Studios is an independent game developer that builds and publishes 80s retro arcade video games! Founded by Steven Boland "SteveProXNA" (Jan-2007) a "one man team of one" currently based in Dublin, Ireland.

Previous Sega-based retro games published include "Candy Kid" available here:

CONTACT

Blog
http://steveproxna.blogspot.com
Email
(see in the zip)
Twitter
@SteveProXNA


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