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Overflow in 1992

Overflow of Logon System

Overflow (Olivier Gout) was a coder of the Logon System group He has released 2 first demoes under the name Croco 21 and has integrated the team in 1990 His first demo as Logon member was S&KOH demo, an astonishing piece of hardware code using a new hardware tricks he had called rvi to extend line-to-line splitting technic. In 2001, Olivier came back on the cpc with an amazing demo called Backtro

He is somewhat active again past 2011 with few releases at demoparties, for CPC or even MSX.

He attended many private miniparties or more public parties such as Alchimie and µAlchimie, Reset or Revision.

Official releases

Back from retirement : the foolish competion era, the legend still goes on

Amstrad CPC 4k demo/intro, released in october 2012.

MSX demo released in march 2015 at Forever 2015 : 8bit demo, ranked : 1st (gold price)

Nominee for the meteorik awards 2015 : "that's not possible on this platform!"

Amstrad CPC 128k RAM, 22k Demo released in april 2017 at Revision 2017 : oldskool demo, ranked : 2nd (silver price)

Nominee for the sir_garbagetruck brain meltdown on Twitch live contest.

GX4000 / 6128PLUS / 464PLUS cartridge in 512Ko ROM/64ko RAM "Intro/one screen Demo" released in November 2017 at Alchimie12 (2017 edition), ranked : 2nd (silver price)

This one is the final release from Shadow Of The Beast Preview from 1995 on CPC standard, making it a 22 years and half project.


  • Yet another Plasma
  • iO

live compo :

  • Logon's run - 3D meets the aging bits

live compo :

  • Eerie Forest


Other productions


  • Live comments from the release/compo at Revision2017 (Twitch channel)
This also displays the LordGarbageTruck mental post-traumatic meltdown nomination for the sir_garbagetruck brain meltdown on Twitch live contest


Communication agent : MacDeath