The best replacement for rcrn is enb.

The best alternatives to rcrn are rated as following:
★★★★★  enb
★★★★  cot
★★★  rlo
★★★  realistic lighting
★★★  elfx
★★  project reality
★  climates of tamriel
★  rlwc
★  cot skyrim

Your alternative for rcrn is not listed? Suggest!
Speaking about rcrn, one probably shouldn't forget about elfx.

Other search terms related to rcrn and their ratings are:
★★★★★ elfx
★★★★ enboost
★★★ climates of tamriel
★ enb
You have in mind a companion for rcrn and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of rcrn in all years. Click on graph for more.
rcrn
enb
cot