30 July 2011, 15:57 | #1 |
Warhasneverbeensomuchfun
Join Date: Jun 2001
Location: Rio de Janeiro / Brazil
Age: 41
Posts: 3,450
|
Working Sierra Soccer
Hi.
Back at the 90s I had a version of Sierra Soccer which crashed with a guru randomly.. it would always happen no matter what you did. I recently downloaded the game from Planet Emulation... I am nearly sure it's not the same version I had, as the one I had, had a cracktro, and this one has none. The problem is still there ,the game gurus after a while. Anyone knows if there's a 100% working version of this? Is this the case of a bad crack, or is the game badly programmed? |
30 July 2011, 21:22 | #2 |
R.I.P Smudge 18-08-16
Join Date: Aug 2005
Location: Leicester/UK
Age: 66
Posts: 3,968
|
Have a look here http://www.thegamearchives.com/?val=..._4_17_0_19_6_0
|
30 July 2011, 23:44 | #3 |
Warhasneverbeensomuchfun
Join Date: Jun 2001
Location: Rio de Janeiro / Brazil
Age: 41
Posts: 3,450
|
the idea is that I download all the versions and find out if any of them is working?
Not that I am complaining |
07 September 2011, 00:19 | #4 |
Posts: n/a
|
Hi Shatterhand, I am the author of Sierra Soccer. I wrote some very sneaky anti-pirate code to deliberately rebooted the computer after a certain amount of gameplay so it allowed people to play the game, but not to get all the way to the finals so it sounds like whoever pirated the game did not spot my anti-piracy devices well enough.
I'm glad you enjoyed the game though and are playing it again. I hope you had success in finding a working version, sadly I do not have a working version to give away. |
07 September 2011, 09:35 | #5 | |
Settler
Join Date: Feb 2007
Location: Serf City
Posts: 1,760
|
Quote:
Are you saying no one can EVER crack this to work properly? |
|
07 September 2011, 14:30 | #6 |
Registered User
Join Date: Aug 2008
Location: Salisbury
Posts: 744
|
|
07 September 2011, 16:31 | #7 | |
Sending You Back In Time
Join Date: Mar 2004
Location: UK
Age: 61
Posts: 986
|
Quote:
Its great to have an author of an actual chart topping game here with a great attitude amiga emulation and his game... I would like to say thank you for creating games for the Amiga in its Heyday. We do our best here to insure people like you and your games are not forgotten...Its not about piracy for us in this day and age but preservation. Did you have a hand in any other games ?? |
|
07 September 2011, 23:33 | #8 | ||
Posts: n/a
|
Quote:
So what I did was to put a CRC check around the code to display the security flag screen when the game booted. If that code was tampered with (which a hacker would have circumnavigated) I littered my code (and graphic data) with calls to check on that CRC throughout the game. If it found the CRC was incorrect, I set a flag and if that was set, I randomly rebooted some time into the game. It was very simple (although creating a perfect CRC when the code could be loaded into anywhere in memory) wasn't easy, but once it worked, it was almost undetectable because it was silent. One suggestion though, the security system for the game was to find a flag on the corner of the game manual and enter it 3 times. Would it not be simpler to scan the manual or copy the flags and page numbers and use a proper original ISO'ed version of the game ? Quote:
Absolutely, I agree its not piracy Not on the Amiga, no. Sierra Soccer was my only game for that platform but I'd written many games before it and plenty after and I continue to do so today. Last edited by TCD; 08 September 2011 at 00:44. |
||
08 September 2011, 07:44 | #9 | |
Registered User
Join Date: Aug 2005
Location: .hr
Age: 45
Posts: 540
|
Quote:
Thanks for writing Sierra Soccer, I really enjoyed playing it, totally cool football game. Similar as Gordon said I had only cracked version of game (shame on me) that rebooted randomly. Last time when I tries the whdload version would also reboot randomly. Hope that someday a working version would be found. |
|
08 September 2011, 12:41 | #10 |
Going nowhere
Join Date: Oct 2001
Location: United Kingdom
Age: 50
Posts: 8,986
|
I'll take this one on chaps, expect a 100% version later on today
|
08 September 2011, 14:31 | #11 | ||||
move.l #$c0ff33,throat
Join Date: Dec 2005
Location: Berlin/Joymoney
Posts: 6,863
|
Each and any protection can be cracked, there's no such thing as "uncrackable protection".
Quote:
If you had made the protection code 100% pc-relative, adding a 100% reliable checksum check would have been very simple. Quote:
Quote:
Quote:
Edit: this following was once in a separate post but a mod here thought it's nice to silently merge the posts... So the text below was written almost 2 hours after my original post: Checked now and the routine works correctly. Interesting way to work around the problem with the non-relocatable code. Anyway, the protection itself is nothing special at all, sorry, I like the way you tried to obfuscate the reset though. Last edited by StingRay; 08 September 2011 at 14:50. Reason: ... |
||||
08 September 2011, 14:59 | #12 | |
Sending You Back In Time
Join Date: Mar 2004
Location: UK
Age: 61
Posts: 986
|
Quote:
Craft one Stunts |
|
08 September 2011, 18:04 | #13 | |
move.l #$c0ff33,throat
Join Date: Dec 2005
Location: Berlin/Joymoney
Posts: 6,863
|
Quote:
That doesn't mean that the protection is any good (it is, as said, nothing special at all), back in the day it was all about speed which resulted in some half/non-working cracks. |
|
08 September 2011, 18:55 | #14 | |
Join Date: Jul 2008
Location: Sweden
Posts: 2,269
|
Quote:
|
|
09 September 2011, 06:40 | #15 |
Registered User
Join Date: Aug 2005
Location: .hr
Age: 45
Posts: 540
|
|
09 September 2011, 14:50 | #16 | |
Registered User
Join Date: Jan 2008
Location: Warsaw/Poland
Age: 55
Posts: 1,960
|
Quote:
All files from disk are used by game or not? Some years ago I decoded all files from this game to rip the music, but I can't decode one file from first disk, if I remember right. I can't found access to this file. For me this is simple "fake" file (no empty space on disk for cracktro etc), but maybe this file is used by game? |
|
09 September 2011, 14:58 | #17 |
Registered User
Join Date: Jan 2008
Location: Warsaw/Poland
Age: 55
Posts: 1,960
|
|
09 September 2011, 15:14 | #18 | |
Registered Insane
Join Date: Feb 2010
Location: Ununited Kingdom
Posts: 792
|
Quote:
|
|
10 September 2011, 12:06 | #19 | |||
Posts: n/a
|
Quote:
Quote:
Quote:
Last edited by Graham Humphrey; 10 September 2011 at 14:20. Reason: Back-to-back posts merged |
|||
10 September 2011, 12:23 | #20 |
move.l #$c0ff33,throat
Join Date: Dec 2005
Location: Berlin/Joymoney
Posts: 6,863
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Config for Sierra Soccer | SteSilk | support.Games | 80 | 04 May 2020 19:04 |
Sierra Soccer issue | daimakaimura | project.WHDLoad | 23 | 23 November 2015 01:36 |
Sensible World of Soccer career not working | burianico | support.Games | 10 | 10 March 2012 13:07 |
Working Euro Soccer ? | lolafg | Amiga scene | 0 | 11 September 2011 12:49 |
PC WORLD calls sensible soccer the best soccer games of all times! | pbareges | Retrogaming General Discussion | 11 | 28 June 2010 09:25 |
|
|