Reduction to move TU (seconds)
First let's look at a table of the raw numbers...
| Move TU | +3 | +6 | +9 |
|---|---|---|---|
| 300 | 285 | 270 | 255 |
| 250 | 237 | 225 | 212 |
| 220 | 209 | 198 | 187 |
| 200 | 190 | 180 | 170 |
| 160 | 152 | 144 | 136 |
| 150 | 142 | 135 | 127 |
| 130 | 123 | 117 | 110 |
| 120 | 114 | 108 | 102 |
| 110 | 104 | 99 | 93 |
| 100 | 95 | 90 | 85 |
| 80 | 76 | 72 | 68 |
| 70 | 66 | 63 | 59 |
| 60 | 57 | 54 | 51 |
| 50 | 47 | 45 | 42 |
| 30 | 28 | 27 | 25 |
| 10 | 9 | 9 | 8 |
Move TU reduction has been simplified enormously since version update 2.12 so we only get a reduction every +3 bonus and it is 5% each time, rounded down. There’s no early optimal bonus for move TU, the more the better. However, since you don’t get any extra reduction on +1, +2, +4, +5, +7 and +8 you should not waste potions on these unless you can get to the next “+3” or you want the faster entrance speed. Entrance speed has been left untouched so is still complicated. We’ll go through that in a second but there’s a couple of interesting notes to make first.
Rounding and acceleration notes:
It’s worth noting that while the game will round the TU’s to a whole number, they’re stored as a fraction so when you accelerate you may get different results from what you expect. Also, elem accelerate is a 26.5% reduction rather than the 25% as stated. Before version update 2.32 accelerate had diminishing returns on monsters with bonus (4% less effective for every +3), so 20% accelerate on +9 was actually 17.6% acceleration. (I’m mentioning this because old conversations/videos may be confusing with this).
Note on sleep: When a monster is asleep and gets a turn it will automatically skip 50TU. However, this will be reduced by the “seconds reduction” bonus on a monster by the same amount displayed in the table above for 50TU skills (47, 45, 42) and takes into account acceleration too.
Old move TU table (for reference only)
| Move TU | +1 | +2 | +3 | +4 | +5 | +6 | +7 | +8 | +9 |
|---|---|---|---|---|---|---|---|---|---|
| 300 | 290 | 282 | 274 | 266 | 259 | 258 | 256 | 254 | 253 |
| 250 | 242 | 235 | 228 | 222 | 216 | 215 | 213 | 212 | 211 |
| 200 | 193 | 188 | 182 | 177 | 173 | 172 | 171 | 169 | 168 |
| 160 | 155 | 150 | 146 | 142 | 138 | 137 | 136 | 135 | 135 |
| 130 | 126 | 122 | 118 | 115 | 112 | 111 | 110 | 110 | 109 |
| 120 | 116 | 112 | 109 | 106 | 103 | 103 | 102 | 101 | 101 |
| 110 | 106 | 103 | 100 | 97 | 95 | 94 | 94 | 93 | 93 |
| 100 | 96 | 94 | 91 | 88 | 86 | 86 | 85 | 84 | 84 |
| 80 | 77 | 75 | 73 | 71 | 69 | 68 | 68 | 67 | 67 |
| 70 | 67 | 65 | 64 | 62 | 60 | 60 | 59 | 59 | 59 |
| 60 | 58 | 56 | 54 | 53 | 51 | 51 | 51 | 50 | 50 |
| 50 | 48 | 47 | 45 | 44 | 43 | 43 | 42 | 42 | 42 |
| 30 | 29 | 28 | 27 | 26 | 25 | 25 | 25 | 25 | 25 |