Flag Day was written for RISC OS in 1992 by Richard Hallas.
The default mode uses the left ("Select") button to open cells and the right ('Adjust') button to flag. You can also play in its original "Search" mode where the right button toggles the left button between opening and flagging cells.
Flag Day places mines by percentage. Default density is 20% mines and Custom games using this density are eligible for the Highscore list which saves your 5 best scores for all levels. There are 4 standard levels ranging from Easy (8x8) to Expert (27x27). Custom grids range from 3x8 to 99x99 in size and from 5% to 50% in density. You can have game sizes larger than the screen display size as the game has scrollbars.
Questionmarks are called "uncertainty markers" but no chording. Options include showing mines at the end of the game, magnifying the tiles, making edges or corners safe or turning on sound effects. The Hint feature shows you a safe square but can only be used once for every 50 mines on the level. New games can be started from the menu, by clicking the game icon on the icon bar, or by clicking the top strip of the game window. Some options are considered cheats, thus using a Hint or making edges safe will prevent entry into the Highscore list. The game works in all available RISC OS colour depths and supports Monochrome to Full-Colour.
Flag Day allows custom skins, introduced in 1994. The game officially comes with 9 skins with several having two versions. Some distributions have 8 skins because the OS skin was occasionally withheld due to copyright concerns. Flag Day was included in most RISC OS 4, 5 and 6 releases and various versions were released by Risc User magazine.
Version History
A list of all known versions sorted by platform then version. Email admin@ if you have more! See the Downloads section for available files.
RISC OS
1
Original version was never released.
RISC OS
2.54
Published with RISC User Volume 5 Issue 10.
RISC OS
2.73
New Hint mode.
RISC OS
3
Unofficial hacked version published with RISC User Volume 7 Issue 8.
RISC OS
3.10
Added option to open squares with Left ('Select') button and to flag with Right ('Adjust') button.
RISC OS
3.15
Various bug fixes.
RISC OS
3.21
Added option for "uncertainty markers" (similar to Questionmarks) and made two button mode the default for flagging.
RISC OS
3.50
Made game more compatible with Acorn Style Guide and re-designed Preferences.
RISC OS
3.71
Unofficial version version that ended up in a Public Domain software library .
RISC OS
4
New skins, 26 bit version, published with RISC User Volume 10 Issue 1.
RISC OS
4.01
Changed icon size.
RISC OS
4.02
Minor bug fixes.
RISC OS
5
Highscore list now saves 5 best scores for each level and for Custom, improved graphics, 5 highscores per level, released with 'Select 1i5' on 2002-04-08 by RISCOS Ltd.
RISC OS
5.01
Minor bug fixes.
RISC OS
5.02
Released with 'Select 2i1' on 2002-10-06 by RISCOS Ltd and incorporated into RISC OS 4.23.
RISC OS
5.03
Released with RISC OS 5.00 and the Iyonix computer by Castle Technology. Only difference from 5.02 was being compiled for the 32-bit XScale processor instead of 26-bit processors used by older RISC OS versions.
RISC OS
5.04
Minor bug fixes.
RISC OS
5.05
Minor bug fixes and updated licence to Freeware.
Pictures
Screenshots are sorted by platform then version.
Flag Day 2.54 - Flag Day in Risc User (October 1992)