DISCLAIMER: these ratings are completely subjective, unofficial and your ratings may be completely different. Some maps are missing from this list because I have not downloaded every map. Sorry there are no links - too time consuming - look them up in Search.
BEST
DoubleTake_Zimplen_2_2
FizzlerTrap
nys_release_122
Portal Raider B2
SP_Climbing_Companion_v1c
sp_damagepy_01
sp_discontinued
sp_faith_in_goo_a2.1
sp_Laser_Encounters_v1_pack
sp_monoportal
sp_patent_pending (Winner Summer 2011)
sp_quadro_v1.0
sp_turing
sp_underground_hustle_V5
Madness_1 - I could not SOLVE but love the Map
### EXCELLENT but very Difficult
encode_v1_10 - fascinating but UNSOLVED
sp_devilschamber_v1.1
kerplunk_v1_1
sp_chander_test_06_v5
sp_chander_test_07
sp_citruz_sepulcros_1-1
sp_enigma_v1.6
sp_sevengates_v1.3
Star_Oasis_v1
EXCELLENT
AfterMath v1.0
aperture_salience
ashley_l1
BallMaze
beginningoftheend
Blue Walls V2
cassatachamber_1
CG_Additional_Ch8_TestsV2
CG_OSTCSA_FINAL
Chamber_9
Distracted_by_Love_1.1
Easy but FUN !! cube_juggle_catch
HARD but Great - CG_Additional_Ch8_TestsV2
inversion
IonEnabled1.1
JAC
levelwithme (great map at end of 'Meat Pack' - the rest sucks)
lob_old_faithful
Map_Name_Here_123
Missing_Geodome
Motanums Main Four
one+one+one_v1.2
Portal2-maps
PurpleSkyChambersV1.1
RBC Test Chamber 2 V3.1
Repurposed
sp_angrybombs_v106
sp_backstage
sp_breakdown_1.2
sp_cattle_tuberculosis_Fix_1.2
sp_chander_test_03_v4
sp_chander_test_04
sp_chander_test_05_v2
sp_crossingthebeams-1-1
sp_daisycutter_01
sp_decode_122
sp_Discophoran_a2
sp_edifice
sp_grox_dis_en
sp_headache_v5
sp_holes
sp_interception_v1.63
sp_laserPit
sp_lit_01[v1.3]
sp_loud_pipes v.1.2
sp_mota_test_1
sp_rabbit_1971
sp_reversal
sp_sphere_of_roundness
sp_superlasertester
sp_switch_case_v1-2
sp_upanddownv3
sp_vengeance_v1.58
sp_your_not_done_yet
sp_zeta_01_01
sp_zimbardo
the_cube_did_it
The_Dark_Side_Of_Aperture_V1.2
thecore_11b - Extract to SourceMods and start from Steam
three_plus_one_v1_1_by_muffelbrot90
Triple
VST_V2
Wedged
Withdrawal Symptoms v2.0.1
Workaround_R1c
VERY GOOD
10testchambers
12 Angry Tests
3mapstart
A Boxiful Mind_1.03
A Little Higher - Reep Blue
Anomaly
Aperturesciencelasertest
Asbestos 1.4
blue_3
Compact Compression
cubi
discouragement_chamber_9_v4.1
Dot-to-Dot
Easy but FUN - sp_schiller_01
Element
faith_v1_4
FirstV1.1
hightide_v11
Indigenous
Jedilink25_Portal_map
ma_portal_10
NEED TO USE DEMOS TO SOLVE - CG_Additional_Ch8_TestsV1
NoClip needed in 2 places - sp_simulacra
Overgrowth
p2_demomap-map1_2.0_4.27.11
PMK_6
Portal 2 RubycarbuncIe_'s Test 1 V2
portal_stories_demo
red_window_v2
revelations_final
Reversion_v1.4
SB_Faith_in_rotation
Sentry Point
sp_1943
sp_a6_laser_show
sp_abetterbradd_v1.0
sp_aly_crushers007.bz2
sp_audiotrash_competition
sp_basement_chambers_v1.1
sp_bn
sp_contaminated_area
SP_Creuz_First_Room
sp_cube_button
sp_cubiculous
Sp_custom
sp_enrichment_1
sp_enrichment_2
sp_enrichment_3_v2_5
sp_forbidden_tests_1 - great but must NoClip through the middle Door.1
sp_fr_lasers_01_advanced_V1.1
sp_fr_lasers_01_V1.1
sp_identity_map0-2
sp_levitation
sp_neat
sp_new_failure
sp_override
sp_oxide
sp_panelized
sp_rat_race_1.02
sp_reboot
sp_redacted_v2
sp_speedy_deterioration
SP_TheEscape_v1
sp_wallbutton_boxracing
sp00k
sp-propolsionpanel
testmap_17
testmap_18
testmap_6
TestMapPack3 - last 2 maps are bad
ThinkingWithFlight
Twin Pillars
verticalprojection1.2
vent_companions.rar
vp_labs_demo
YinYang_by_theLAGmaster
GOOD
Altaris
aperturescienceturrettest
arc_reznor
arc_worldportal_intro
Break Away
Catch_Entry_3.0
diprt_laser_fizzler
DontMakeLemonade
dreamlike_state_revB
DungeonV2
EASY but fun - three_rooms_v2
easy_champer
Faithling_1 - Fun but problematic
GelChamber
grox_discouragement encouiragement
holiday_headache_v1.0
jeezydelight
LinkingAnnex
lob_delta_bunsen
Misplaced Conversion
MLs Combination
MLs Halloween Trick
No PORTALS !! sp_wopgdemo_volleygel
not_just_a_box
p2_Trickery
prototype01-02
RedWhiteBlue_v1_2
Short
sp_a1_boxfling_jsmaps_v5
sp_aperture_syndrome
sp_birefringence_c
sp_bloodys_chambers_b7
sp_clav1_entry01
sp_clav1_entry01
sp_cubiculous by ImpaQuade
sp_dejavu
sp_desertedchamber1
sp_e3_crushers_v1
sp_eco_leaf_fix
sp_hopeless
sp_Out Of Reach
sp_paradox
sp_patches_maps_v1.2
sp_reconstruct
sp_thaw_1-2
sp_thebradd_v1.0
SP_TheCatacombs_v1
sp_thecoldshoulder1-4
splayer_zro_test02_v1.2.4
testmap_7
testmap_9
testmaps2
The_Curious_Conundrum
the_room_v2
Thinking with Stupidity - tws
vent_companions
Would be Excellent but TOO HARD - sp_psicodelia_v1_2
sp_will-t_cubes-n-funnels_v1-3
AVERAGE
aperturesciencepaneltest
ApertureSciencetimetesting
Around The Bend
blue_portal_flings
CaretCaret_1_5
G_FLING_1
Gel_training
ksp_chamber01
LostInTesting
pitk_overgrown_chmb
portal2_testchamber_117_Dawnreaver
Rebound map
Somewhere in Aperture
Somewhere Underground
sp_1_inthechamber050611_03
sp_cascade
SP_complications
SP_Convergent_Breakout
sp_cube_collector
sp_dkx_gtc_final
sp_laser_funnel_1_0
sp_mh_wavelet_final
sp_mysterious
sp_one_geometric_task
sp_paradox
sp_patches_maps_v1.3
sp_primal_decay - BEGINNER MAP - EASY
sp_thecoldshoulder1-1
sp_trigonometry
SP_Vertical-Reach-v1.2
TheUnknownV1.2
FAIR
_Hall Of Dodoen
BROKEN but great 1st KChamber - ma_portal11
demo 2
heavy_metal_v1.2
jump_crapmap2
lab_life
more_than_meets_the_eye
sp_cradle_v1
sp_get_the_gel_1.7
sp_gssbs_chamber01
sp_tunafish
Spongebob_X
TheCrossroads v1.2
Tic-tac-toe+gel-fling-button
TPWEGTH Real Map
Uselessness
TheCrossroads v1.2
UNIQUE
DUMB - WIERD - TooManyFans
FUN (Turret Vacuum) - Versatile_diversity
FUN Big Air but need MatFulbright = 1 - Faling_Through_the_Dark
LeSwordfish
LONG DIFFICULT JUMPS - sp_Acrobatics_PortalRun
LONG INTERESTING but need NoClip - coreciv
Mamba
moth_bts01_291011 - Beautiful but no Puzzles
observating - a Horror Story - cool
pillz_sp_cubestacking
Quake-like - and Long and Frastrating - Cube retrieval run
quantum_entanglement_072411
Somewhere Underground -SU2-
soundlogic new testing elements demo V1.0
sp_olympic_v1.00
testmaps (map 13 is BAD)
Time_Arch_v7
GOOD - sp_theskinnerbox-1-2
Weighted Wonderland - Portal in Snow and Ice
'World Portals' - sp_tod_Sprunrun
UNIFINISHED
Abandoned
BROKEN in some WAY
cube_collector
IMPOSSIBLE FINAL JUMP - ys_science_fun v2.0
Oblivious Paranoia 31.05.11
SP_Ka_Maps_Level_1_086
ys_science_fun_2
