Sensomusic has announced a Spring Promo 50% Off offer on a Usine Stage license. Was 39 €, now 19 €.
Usine Stage is an introduction to Usine and can be updated later to the Pro version - it sits in-between the free and the pro versions and is described as a Modular DAW with 16 audio inputs/outputs, 8 tracks, VST and OSC support and more (see the comparison chart).
Check Sensomusic Store.