Hey guys, happy Easter!
I've just uploaded Tetris II v0.99a for DOS (DOSBox included in download).

This release concentrated on IPX network multiplayer improvements, but also brings some other changes.

Release notes:

• Fixed several issues in network and normal playback
• New stone animation with particle FX on top right
• More screen estate for scores
• Demo mode added - Tetris plays itself
• The MOD player also supports STM and 669 modules
• Added new sound effects
• Added workaround for crackling sound in DOSBox
• Improved particle effects allow for more particles
• Some routines have been sped up

A machine with 16 MByte RAM and quicker Pentium should be sufficient, although the game will work properly even on a 486 (the particle effects haven't been set up to adjust for lower end machines though).
Manual for IPX setup in DOSBox is included as well. I've been playing and hunting issues with a friend over several sessions, so enjoy the result!

Download: https://crossfire-designs.de/download/software/tetris2.exe