Oberom

Oberom is a sampled version of Oberon by Land of Cockaigne, a VST plugin that is an attempt to imitate the classic analog polysynths. With its thick 2-pole dual filter, it's sound is reminiscent of the Arp 2600.

Oberom comes with the original 16 sounds. They have been sampled to be faithful copies of the presets that came with Oberon. Oberom is a must-have if you produce synthwave, synth-pop, vaporwave, and any other 80s influenced genres.

https://www.samplescience.ca/2019/10/oberom.html

SQ8ROM

SQ8ROM is a free rompler virtual instrument offered in VST, VST3, and AU plugin formats for compatible digital audio workstations on PC and Mac. It is a sample-based recreation of the legendary Ensoniq SQ-80 hardware synthesizer. The SQ-80 was the successor of the much-beloved SQ-1 keyboard, featuring 41 additional waveforms and various hardware improvements. Similar to its hardware counterpart, SQ8ROM is a fantastic source of lush 80s-style pads, vintage leads, and warm bass sounds.

The instrument comes with 168 multi-sampled patches. These are all clearly labeled and easily accessible through the plugin’s preset browser. The source sounds can be tweaked using SQ8ROM’s volume envelope and LFO modulation controls. A built-in reverb is also included, courtesy of the MaizeSampler platform which was used as the framework for developing the plugin.


https://www.samplescience.ca/p/sq8rom-download-page.html

SampleScience Player

The SampleScience Player is the biggest free rompler available today. This instrument plugin contains a core library of 200 playable instruments. You'll find everything from acoustic pianos to analog synthesizers drums. To limit the size of the plugin without compromising it sound quality, the library has been compressed to FLAC, a lossless audio compression codec.
The SampleScience Player's sounds are classified by categories which includes:

• Basic: Basic waveforms from vintage analog synthesizers.
• Bass: Various bass from synthesizers and electric bass.
• Brass: Tuba and saxophone.
• Chips: Arcade sound effects arranged as drum modules.
• Drums: Various electronic drum machines and acoustic drum kits.
• Keys: Acoustic, electric and electronic pianos and organs.
• Orchestra: Jeff Glatt public domain orchestral library.
• Perc: Percussive instruments, mostly acoustic.
• Sound Design: Excerpts from our commercial sample libraries.
• Strings: Acoustic string based instruments.
• Synth: Synthesizer sounds from both analog and software synthesizers.
• Vocals: Various sampled voices.
• Wind: Wind acoustic instruments.
• World: Instruments from around the world.
• 
  
• Bonus: Mastrcode Music Atmospheric Pads Vol.1: a collection of pads sampled as chords for that old school early jungle/techno feel.

http://www.samplescience.ca/2017/10/samplescience-player.html

Necromare

An incredibly talented artist who goes by the name Necromare created an amazing amount of VST instruments a few years back. These instruments range from traditional pianos, music boxes and brass instruments to wild soundscapes and horror instruments that are perfect for Halloween.

http://bigcatinstruments.blogspot.com.es/2016/03/necromare-vsts.html

Orion Sound Module

SampleScience has announced the release ofOrion Sound Module, a free rompler instrument for Windows and Mac OS X.
The idea behind the Orion Sound Module plugin is to provide a rompler based on public domain samples that can be used to create royalty-free loops.
At first, the plugin was made for in-house loop production but SampleScience decided to share it with the world in the spirit of giving back to the community that gave them so much.
The result is a free 3GB rompler.

http://www.samplescience.ca/2016/01/orion-sound-module.html