Samplescience’s Oberom is a curious synth plugin in that it’s actually a sampled version of a previous one - Land of Cockaigne’s Oberon.
Designed to emulate the sound of classic analogue polysynths, it comes with recreations of the 16 presets from the plugin that inspired it, and offers an amplitude ADSR, reverb, multimode LFO and multimode filter. It’s said to be suitable for creating synthwave, synth-pop, vaporwave and other ‘80s-style sounds.
The best news, though, is that Oberom is completely free: you can download it in VST/AU formats for PC and Mac from the Samplescience website.