| DS | Monster Rancher DS | 2010 | Simulation | Cing | Monster raising and battling, now on two screens! Utilizes the microphone and touch screen to create monsters |
| GBA | Monster Rancher Advance | 2001 | Monster Collecting | Tecmo | Similar to the PSX games, but using words to summon monsters rather than CDs |
| GBA | Monster Rancher Advance 2 | 2002 | Monster Collecting | Tecmo/Graphic Research | See above! |
| PS2 | Monster Rancher 3 | 2001 | Monster Collecting | Tecmo | More monster raising, but now you can trade monsters with friends/can use past data rather than disc-digging for old monsters! |
| PS2 | Monster Rancher 4 | 2003 | Monster Collecting | Tecmo | Allows for more customization of your training facilities and adds a major exploration/adventure mode |
| PS2 | Monster Rancher EVO | 2006 | Monster Collecting | Tecmo | Leans more into traditional RPG mechanics than the rest of the series, dumbs some regular Monster Rancher ones down in the process |
| PSX | Monster Rancher | 1997 | Monster Collecting | Tecmo | Use CDs to unlock monsters that you train and fight! |
| PSX | Monster Rancher 2 | 1999 | Monster Collecting | Tecmo | Use CDs to unlock more monsters that you train and fight! |
| Switch | Monster Rancher 1 & 2 DX (DL only) | 2021 | Monster Collecting | Koei Tecmo | Bundled QoL-polished versions of the monster breeder, with turbo functions, added monsters to the second game, and an in-game CD database |
| Switch | Ultra Kaiju Monster Rancher (DL/Asia English) | 2022 | Monster Collecting | Koei Tecmo | An Ultraman-Monster Rancher crossover that maybe nobody asked for, but everyone needed (same gameplay as older titles, but kaiju-sized!) |
