dfx transverb> http://destroyfx.smartelectronix.com/
taldub3> https://tal-software.com/Products
seemingly, we live in the 'future
on the crust of the earth
breathing the air
below the clouds
and above the salt water
digital audio is 'old
rain falls from the sky,
food grows from the ground
I am assuming this thread is for free plug-ins?
I think the venerable soundhack plugins deserve a mention 
http://www.soundhack.com/freeware/
Cecilia is also great.
For some cracking higain amp Sims and other guitar based niceness I recently discovered…
Also has an impulse loader (only 32bit)
http://www.igniteamps.com/en/audio-plug-ins
Nice tube screamer sim
Great cab sim
Emissary amp is 
And for synths… My all time favourites SYNTH1, Dexed and SQ8L
George Yohng’s clone of Waves L1 limiter http://www.yohng.com/software/w1limit.html
Audio Damage Rough Rider mulitband compressor http://www.audiodamage.com/downloads/product.php?pid=ADF002
Ohmforce Frohmage filter https://www.ohmforce.com/ViewProduct.do?p=Frohmage
LFX-1310 multi-effects http://sonic-cat.com/lfx-1310/
Mr Alias’ nasty synth http://www.thepiz.org/mralias2/
Symptohm PE synth https://www.ohmforce.com/UseFreeSoftware.do?action=listFreeNonStandalones&productId=1274001
TDR’s plugins deserve a mention - Kotelnikov’s handling of transients is dark magic. iZotope Vinyl should be here too, nothing else gets even close (that isn’t a turntable). Also love Luftikus - ends up on master in too many projects. Digits for phase distortion synth.
Synth1 (linked to above already) really scratches my itches recently. The amount of user presets you can get online is astonishing.
Sanford Reverb is great.
Most of the TAL synthesizers are good too.
https://tal-software.com/Products
My company recently released a saturation plug-in called Indent: https://www.plugin-alliance.com/en/products/unfiltered_audio_indent.html
It’s free for 6 more days.
limiter 6 by Vladislav Goncharov
https://vladgsound.wordpress.com/plugins/limiter6/
(afaik he’s working with Tokyo Dawn Lab mentioned by @eesn)
oh and the free chorus/flanger/phaser/etc. by ValhallaDsp is worth a check
klanghelm has a couple of freeware slimmed-down versions of their full plugs: two compressors, dc1a and mjuc jr, and a pretty nice little saturator called IVGI.
'course, all of their plugs are like $30 anyway, so it’s worth throwing them some cash. dc2a is an astonishingly good compressor.
Windows users should check out the Atlantis synth and filter:
http://jeremyevers.com/atlantis/
Both feature wonderful implementations of the randomise button…
fuzz plus 3 and rough rider
what do we know about this…
molot compressor https://vladgsound.wordpress.com/downloads/
https://youtu.be/bmufL_mhxiw
My goto plugin in every project is probably Liquisonic’s Reverberate https://www.liquidsonics.com/
And I do like to use this one here for which I’ve made the UI quite a lot as well: http://ju-x.com/frosting.html (which is not so obvious… once you’ve spent so much time on something, it’s not always the case that you feel like actually using them for making music )
Among the free ones, I still get back to Synth1 when I need a softsynth.
I really enjoy Podolski which is a soft synth from U-he a really solid German soft synth company. I like the other synth by them Tyrell N6. Both have really solid sound and flexibility.
well i’ve never used it. did you play with it ?
I love love love the plugins from https://varietyofsound.wordpress.com/. Very subtle and elegant designs.
