| Image | Item No. | Description |
| 9780-1 (Inv) | ROBOLAB Starter Building Set
1702 Parts, 4 Minifigures, 10 Gear, 1998
Catalog: Sets: Educational & Dacta: MINDSTORMS: RCX |
| 3026-1 (Inv) | 25th Anniversary Silver Tub
1201 Parts, 1998
Catalog: Sets: Universal Building Set: Basic Set |
| 3759-1 (Inv) | 35th Anniversary Tub
1200 Parts, 1998
Catalog: Sets: Universal Building Set: Basic Set |
| 3033-1 (Inv) | Basic Bulk Tub (American Version)
1200 Parts, 1998
Catalog: Sets: Universal Building Set: Supplemental |
| 4258-1 (Inv) | Big Box Play Scape
1005 Parts, 1998
Catalog: Sets: FreeStyle |
| 9250-1 (Inv) | Basic Zoo
971 Parts, 1998
Catalog: Sets: Educational & Dacta: Universal Building Set |
| 2453-1 (Inv) | Large Bulk Bucket
950 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 2456-1 (Inv) | Big Bulk Box
900 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 8482-1 (Inv) | CyberMaster
892 Parts, 1 Minifigure, 1 Gear, 1998
Catalog: Sets: Technic: Competition |
| 8483-1 (Inv) | CyberMaster with Storage Case
892 Parts, 1 Minifigure, 1 Gear, 1998
Catalog: Sets: Technic: Competition |
| 3028-1 (Inv) | 25th Anniversary Silver Tub
838 Parts, 1998
Catalog: Sets: FreeStyle |
| 3761-1 (Inv) | 35th Anniversary Tub
837 Parts, 1998
Catalog: Sets: FreeStyle |
| 4229-1 (Inv) | Brick Pack 300
812 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 8462-1 (Inv) | Super Tow Truck
774 Parts, 1998
Catalog: Sets: Technic: Model: Traffic |
| 9719-1 (Inv) | Robotics Invention System, Version 1.0
727 Parts, 2 Gear, 1998
Catalog: Sets: MINDSTORMS: RCX |
| 5988-1 (Inv) | Pharaoh's Forbidden Ruins
668 Parts, 10 Minifigures, 1998
Catalog: Sets: Adventurers: Desert |
| 6093-1 (Inv) | Flying Ninja's Fortress
654 Parts, 9 Minifigures, 1998
Catalog: Sets: Ninja |
| 3025-1 (Inv) | 25th Anniversary Silver Bucket
601 Parts, 1998
Catalog: Sets: Universal Building Set: Basic Set |
| 3758-1 (Inv) | 35th Anniversary Bucket
600 Parts, 1998
Catalog: Sets: Universal Building Set: Basic Set |
| 9253-1 (Inv) | Basic Farm
591 Parts, 1998
Catalog: Sets: Educational & Dacta: Universal Building Set |
| 2556-1 (Inv) | Ferrari Formula 1 Racing Car
580 Parts, 1998
Catalog: Sets: Model Team |
| 4213-1 (Inv) | Super Set 200
507 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 4226-1 (Inv) | Building Monsters
503 Parts, 2 Minifigures, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 4274-1 (Inv) | FreeStyle Playdesk
498 Parts, 1 Minifigure, 1 Gear, 1998
Catalog: Sets: FreeStyle |
| 5542-1 (Inv) | Black Thunder
483 Parts, 1998
Catalog: Sets: Model Team |
| 4216-1 (Inv) | Super Set 100
480 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 8432-1 (Inv) | Supersonic Car
471 Parts, 1998
Catalog: Sets: Technic: Model: Off-Road |
| 8428-1 (Inv) | Turbo Command
471 Parts, 1 Gear, 1998
Catalog: Sets: Technic: Model: Off-Road |
| 2449-1 (Inv) | Classic Bulk
466 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 2853-1 (Inv) | Classic Bulk
466 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 3041-1 (Inv) | Big Bucket of Fun
464 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 4267-1 (Inv) | Large Bucket
464 Parts, 1998
Catalog: Sets: FreeStyle |
| 6199-1 (Inv) | Hydro Crystalization Station
449 Parts, 5 Minifigures, 1998
Catalog: Sets: Aquazone: Hydronauts |
| 4220-1 (Inv) | Large Box of Bricks
428 Parts, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 6977-1 (Inv) | Arachnoid Star Base
419 Parts, 4 Minifigures, 1998
Catalog: Sets: Space: Insectoids |
| 3027-1 (Inv) | 25th Anniversary Silver Bucket
413 Parts, 1998
Catalog: Sets: FreeStyle |
| 3034-1 (Inv) | 25th Anniversary Silver Bucket
413 Parts, 1998
Catalog: Sets: FreeStyle |
| 3760-1 (Inv) | 35th Anniversary Bucket
412 Parts, 1998
Catalog: Sets: FreeStyle |
| 6479-1 (Inv) | Emergency Response Center
406 Parts, 5 Minifigures, 1998
Catalog: Sets: Town: Res-Q |
| 4255-2 (Inv) | FreeStyle 400 Bricks
402 Parts, 1998
Catalog: Sets: FreeStyle |
| 2494-1 (Inv) | 400-Piece Purple Bucket
400 Parts, 1998
Catalog: Sets: Universal Building Set: Basic Set |
| 4244-1 (Inv) | Large Bulk Bucket
398 Parts, 1998
Catalog: Sets: FreeStyle |
| 6089-1 (Inv) | Stone Tower Bridge
385 Parts, 5 Minifigures, 1998
Catalog: Sets: Ninja |
| 6198-1 (Inv) | Stingray Stormer
384 Parts, 4 Minifigures, 1998
Catalog: Sets: Aquazone: Stingrays |
| 8257-1 (Inv) | Cyber Strikers
365 Parts, 2 Minifigures, 1998
Catalog: Sets: Technic: Competition |
| 3038-1 (Inv) | Spider Slayer
364 Parts, 2 Minifigures, 1998
Catalog: Sets: Technic: Competition |
| 8266-1 (Inv) | Super Challenge
364 Parts, 2 Minifigures, 1998
Catalog: Sets: Technic: Competition |
| 4224-1 (Inv) | Medium Bucket
351 Parts, 2 Minifigures, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 4222-1 (Inv) | Challenger Set 300
350 Parts, 2 Minifigures, 1998
Catalog: Sets: Universal Building Set: Classic Basic |
| 6584-1 (Inv) | Extreme Team Challenge
342 Parts, 4 Minifigures, 1998
Catalog: Sets: Town: Extreme Team |